id
stringlengths
8
22
question
stringlengths
18
758
choices
dict
answerKey
stringclasses
8 values
ctx
stringlengths
18
758
endings
listlengths
4
4
label
stringclasses
4 values
endings_shuffled
listlengths
4
4
LEAP__7_10353
A scientist plans to investigate the nervous system of sea slugs. What should the scientist do first?
{ "text": [ "Develop a theory about sea slugs that can be tested.", "Go to the ocean to observe the behavior of sea slugs.", "Obtain several sea slugs and conduct experiments with them.", "Review the research other scientists have done on sea slugs." ], "label": [ "A", "B", "C", "D...
D
A scientist plans to investigate the nervous system of sea slugs. What should the scientist do first?
[ "Develop a theory about sea slugs that can be tested.", "Go to the ocean to observe the behavior of sea slugs.", "Obtain several sea slugs and conduct experiments with them.", "Review the research other scientists have done on sea slugs." ]
3
[ "observation", "building a road around a small forest", "Water quality will improve.", "Review the research other scientists have done on sea slugs." ]
Mercury_7182193
Natural selection is a mechanism that acts on individuals within a population. Which is a result of the process of natural selection?
{ "text": [ "The reproductive rate of the population decreases.", "Genetic similarity within the population increases.", "Organisms are better adapted to their environment.", "Adverse changes to the environment become more frequent." ], "label": [ "A", "B", "C", "D" ] }
C
Natural selection is a mechanism that acts on individuals within a population. Which is a result of the process of natural selection?
[ "The reproductive rate of the population decreases.", "Genetic similarity within the population increases.", "Organisms are better adapted to their environment.", "Adverse changes to the environment become more frequent." ]
2
[ "to move water to the flowers", "The classroom would have carpet on the floors.", "Organisms are better adapted to their environment.", "friction" ]
Mercury_415543
What chemical symbol represents the element iron?
{ "text": [ "Fe", "I", "Ir", "Pb" ], "label": [ "A", "B", "C", "D" ] }
A
What chemical symbol represents the element iron?
[ "Fe", "I", "Ir", "Pb" ]
0
[ "Fe", "wood", "potential energy.", "the fungi that break down dead plants" ]
Mercury_SC_LBS10909
A push or a pull on an object is an example of
{ "text": [ "force.", "weight.", "energy.", "work." ], "label": [ "A", "B", "C", "D" ] }
A
A push or a pull on an object is an example of
[ "force.", "weight.", "energy.", "work." ]
0
[ "force.", "how to find food in garbage cans", "12 centimeters", "how layers of rocks and soil are formed along a stream" ]
AIMS_2009_4_30
Which statement is a description of weather?
{ "text": [ "Summers in Tucson are hot and dry.", "Winters in Flagstaff are cold and snowy.", "The temperature is 55° F in Winslow today.", "The Sun will set in Yuma today at 6:45 p.m." ], "label": [ "A", "B", "C", "D" ] }
C
Which statement is a description of weather?
[ "Summers in Tucson are hot and dry.", "Winters in Flagstaff are cold and snowy.", "The temperature is 55° F in Winslow today.", "The Sun will set in Yuma today at 6:45 p.m." ]
2
[ "transporting oxygen, wastes, and nutrients throughout the body", "All animals are single-celled heterotrophs.", "The temperature is 55° F in Winslow today.", "compacted plant remains" ]
MCAS_2015_5_9
Clouds and precipitation moved across western Massachusetts one evening. The temperature changed from 41°F to 28°F. Which of the following changes in precipitation most likely occurred on this evening?
{ "text": [ "sleet changing to hail", "snow changing to rain", "rain changing to sleet", "snow changing to hail" ], "label": [ "A", "B", "C", "D" ] }
C
Clouds and precipitation moved across western Massachusetts one evening. The temperature changed from 41°F to 28°F. Which of the following changes in precipitation most likely occurred on this evening?
[ "sleet changing to hail", "snow changing to rain", "rain changing to sleet", "snow changing to hail" ]
2
[ "extinction", "muddy paws", "rain changing to sleet", "water" ]
Mercury_7024973
The human body has an average, normal temperature of about 98.6ºF. To keep the core body temperature from becoming too high, the brain sends a signal to the body to
{ "text": [ "decrease sugar levels in the blood.", "increase sugar levels in the blood.", "decrease blood flow to the skin.", "increase blood flow to the skin." ], "label": [ "A", "B", "C", "D" ] }
D
The human body has an average, normal temperature of about 98.6ºF. To keep the core body temperature from becoming too high, the brain sends a signal to the body to
[ "decrease sugar levels in the blood.", "increase sugar levels in the blood.", "decrease blood flow to the skin.", "increase blood flow to the skin." ]
3
[ "A prokaryotic cell is larger.", "natural selection", "The breath mint had a lower density than the toothpaste.", "increase blood flow to the skin." ]
Mercury_SC_408539
Why is water considered to be a renewable resource?
{ "text": [ "Water can be used over again.", "Water can be found all over Earth.", "Water can dissolve other substances.", "Water is needed by organisms to stay alive." ], "label": [ "A", "B", "C", "D" ] }
A
Why is water considered to be a renewable resource?
[ "Water can be used over again.", "Water can be found all over Earth.", "Water can dissolve other substances.", "Water is needed by organisms to stay alive." ]
0
[ "Water can be used over again.", "white", "numerous park areas", "moist skin and feet" ]
Mercury_7017833
What is the most prominent land feature formed by the convergence of the Indo-Australian and Eurasian plates?
{ "text": [ "China", "Australia", "Ural Mountains", "Himalaya Mountains" ], "label": [ "A", "B", "C", "D" ] }
D
What is the most prominent land feature formed by the convergence of the Indo-Australian and Eurasian plates?
[ "China", "Australia", "Ural Mountains", "Himalaya Mountains" ]
3
[ "highlight objects with chemical dyes.", "nervous system", "gneiss", "Himalaya Mountains" ]
AIMS_2008_4_10
To which group does an animal belong if it lays eggs and has scales and gills?
{ "text": [ "amphibian", "bird", "fish", "reptile" ], "label": [ "A", "B", "C", "D" ] }
C
To which group does an animal belong if it lays eggs and has scales and gills?
[ "amphibian", "bird", "fish", "reptile" ]
2
[ "I and Xe", "chemical", "fish", "sunlight for plants" ]
Mercury_SC_406744
What causes nighttime and daytime on Earth?
{ "text": [ "the Sun rotating on its axis", "Earth rotating on its axis", "Earth revolving around the Sun", "the Moon revolving around Earth" ], "label": [ "A", "B", "C", "D" ] }
B
What causes nighttime and daytime on Earth?
[ "the Sun rotating on its axis", "Earth rotating on its axis", "Earth revolving around the Sun", "the Moon revolving around Earth" ]
1
[ "pressure in thick sediments that produces heat", "Earth rotating on its axis", "pack a lunch instead of buying a school lunch", "electrons and protons" ]
Mercury_SC_417575
Which area is coldest?
{ "text": [ "rainforest", "tundra", "grassland", "reef" ], "label": [ "A", "B", "C", "D" ] }
B
Which area is coldest?
[ "rainforest", "tundra", "grassland", "reef" ]
1
[ "Industries that produce electronics help the economy.", "tundra", "earthworms moving through soil", "Climate varies more than weather." ]
Mercury_SC_401799
Which scientist is credited with using a telescope in the seventeenth century to discover the moons of Jupiter?
{ "text": [ "Galileo", "Kepler", "Einstein", "Newton" ], "label": [ "A", "B", "C", "D" ] }
A
Which scientist is credited with using a telescope in the seventeenth century to discover the moons of Jupiter?
[ "Galileo", "Kepler", "Einstein", "Newton" ]
0
[ "Galileo", "respiratory", "oil", "carbon dioxide" ]
Mercury_7217893
Which of these is a freshwater reservoir?
{ "text": [ "Gulf of Mexico", "Pacific Ocean", "Atlantic tidal basin", "Antarctic polar ice" ], "label": [ "A", "B", "C", "D" ] }
D
Which of these is a freshwater reservoir?
[ "Gulf of Mexico", "Pacific Ocean", "Atlantic tidal basin", "Antarctic polar ice" ]
3
[ "Each cell has a different function.", "law.", "talking", "Antarctic polar ice" ]
Mercury_7263113
In eukaryotic organisms, microtubules give cells structure, and microfilaments help the cell contract and move. Together, they combine to perform functions similar to what two human body systems?
{ "text": [ "the endocrine and skeletal systems", "the circulatory and respiratory systems", "the skeletal and muscular systems", "the integumentary and excretory system" ], "label": [ "A", "B", "C", "D" ] }
C
In eukaryotic organisms, microtubules give cells structure, and microfilaments help the cell contract and move. Together, they combine to perform functions similar to what two human body systems?
[ "the endocrine and skeletal systems", "the circulatory and respiratory systems", "the skeletal and muscular systems", "the integumentary and excretory system" ]
2
[ "sharp claws", "It froze.", "the skeletal and muscular systems", "groundwater contamination" ]
OHAT_2011_8_2
Which kind of rock is produced by deposition and cementation?
{ "text": [ "marble, a metamorphic rock", "sandstone, a sedimentary rock", "granite, an intrusive igneous rock", "pumice, an extrusive igneous rock" ], "label": [ "A", "B", "C", "D" ] }
B
Which kind of rock is produced by deposition and cementation?
[ "marble, a metamorphic rock", "sandstone, a sedimentary rock", "granite, an intrusive igneous rock", "pumice, an extrusive igneous rock" ]
1
[ "Stem cuttings are placed in water and grow roots.", "sandstone, a sedimentary rock", "hardness", "consumption of bad food" ]
NYSEDREGENTS_2005_4_2
Which characteristic is inherited rather than learned?
{ "text": [ "telling a story", "saluting the flag", "having blue eyes", "riding a bicycle" ], "label": [ "A", "B", "C", "D" ] }
C
Which characteristic is inherited rather than learned?
[ "telling a story", "saluting the flag", "having blue eyes", "riding a bicycle" ]
2
[ "an asteroid hitting Earth", "The atomic number decreases.", "having blue eyes", "sun, water, and roots." ]
ACTAAP_2013_7_3
Which biological process in mammals occurs largely due to cell division?
{ "text": [ "healing", "respiration", "decomposition", "photosynthesis" ], "label": [ "A", "B", "C", "D" ] }
A
Which biological process in mammals occurs largely due to cell division?
[ "healing", "respiration", "decomposition", "photosynthesis" ]
0
[ "healing", "migration into the population is occurring.", "types of circuits", "What is the cost per ounce?" ]
MCAS_1998_8_18
Frame construction predominates in the New England area due to the abundance of
{ "text": [ "clay.", "masonry.", "wood.", "steel." ], "label": [ "A", "B", "C", "D" ] }
C
Frame construction predominates in the New England area due to the abundance of
[ "clay.", "masonry.", "wood.", "steel." ]
2
[ "the Rocky Mountains and the Swiss Alps are both volcanic in origin", "Australia", "wood.", "fast speed" ]
Mercury_7207480
Which of these properties of water helps moderate the weather of coastal areas?
{ "text": [ "neutral pH", "high specific heat", "dissolves many substances", "floats as a solid" ], "label": [ "A", "B", "C", "D" ] }
B
Which of these properties of water helps moderate the weather of coastal areas?
[ "neutral pH", "high specific heat", "dissolves many substances", "floats as a solid" ]
1
[ "It depletes nutrients from the soil to benefit its young.", "high specific heat", "wear an acid-resistant apron", "carbon, sodium, hydrogen, oxygen" ]
Mercury_SC_400326
Birds eat non-camouflaged moths at a higher rate than they eat camouflaged moths. In which situation would birds eat the moths at the slowest rate?
{ "text": [ "dark moths in any environment", "light moths in any environment", "dark moths in a light environment", "light moths in a light environment" ], "label": [ "A", "B", "C", "D" ] }
D
Birds eat non-camouflaged moths at a higher rate than they eat camouflaged moths. In which situation would birds eat the moths at the slowest rate?
[ "dark moths in any environment", "light moths in any environment", "dark moths in a light environment", "light moths in a light environment" ]
3
[ "change in density.", "There is only a benefit for the humans.", "manatees will seek alternate food sources", "light moths in a light environment" ]
NYSEDREGENTS_2011_8_14
During which process does a caterpillar become a butterfly?
{ "text": [ "fertilization", "metamorphosis", "asexual reproduction", "biological adaptation" ], "label": [ "1", "2", "3", "4" ] }
2
During which process does a caterpillar become a butterfly?
[ "fertilization", "metamorphosis", "asexual reproduction", "biological adaptation" ]
1
[ "The kittens are kept at the same temperatures by their mother when they are first born.", "metamorphosis", "not need to eat anymore.", "nitrogen" ]
Mercury_7188983
Gregor Mendel cross-pollinated red and white snapdragon flowers. What information indicates that incomplete dominance was achieved?
{ "text": [ "The offspring had heterozygous alleles.", "The offspring had a recessive allele.", "The offspring were pink.", "The offspring were red." ], "label": [ "A", "B", "C", "D" ] }
C
Gregor Mendel cross-pollinated red and white snapdragon flowers. What information indicates that incomplete dominance was achieved?
[ "The offspring had heterozygous alleles.", "The offspring had a recessive allele.", "The offspring were pink.", "The offspring were red." ]
2
[ "The Sun would appear larger and brighter.", "automatic external defibrillator", "The offspring were pink.", "population" ]
NYSEDREGENTS_2009_8_22
What is the major function of the human excretory system?
{ "text": [ "eliminate waste materials", "respond to stimuli", "break down food mechanically", "absorb nutrients from food" ], "label": [ "1", "2", "3", "4" ] }
1
What is the major function of the human excretory system?
[ "eliminate waste materials", "respond to stimuli", "break down food mechanically", "absorb nutrients from food" ]
0
[ "eliminate waste materials", "Cells are alive.", "hydrogen peroxide", "It produces chemicals to regulate growth." ]
TIMSS_2003_4_pg37
Yumiko gave some reasons why kettles and kitchen pans are often made of copper. Which reason is correct?
{ "text": [ "Copper is a good conductor of heat.", "Copper is easy to melt.", "Copper is difficult to shape.", "Copper dissolves in hot water." ], "label": [ "A", "B", "C", "D" ] }
A
Yumiko gave some reasons why kettles and kitchen pans are often made of copper. Which reason is correct?
[ "Copper is a good conductor of heat.", "Copper is easy to melt.", "Copper is difficult to shape.", "Copper dissolves in hot water." ]
0
[ "Copper is a good conductor of heat.", "decrease the temperature in the room", "an anemometer", "0.58 m/s^2" ]
Mercury_7228253
In most animals, combinations of various tissues make up functional units called
{ "text": [ "epithelial cells.", "organs.", "organ systems.", "populations." ], "label": [ "A", "B", "C", "D" ] }
B
In most animals, combinations of various tissues make up functional units called
[ "epithelial cells.", "organs.", "organ systems.", "populations." ]
1
[ "Vegetation in water would decrease.", "organs.", "Place it in the dark.", "escape predators" ]
AIMS_2009_4_18
How do the spines of a cactus help it survive?
{ "text": [ "Spines help the cactus get moisture.", "Spines anchor the cactus in the ground.", "Spines protect the cactus from animals.", "Spines support the stems and branches of the cactus." ], "label": [ "A", "B", "C", "D" ] }
C
How do the spines of a cactus help it survive?
[ "Spines help the cactus get moisture.", "Spines anchor the cactus in the ground.", "Spines protect the cactus from animals.", "Spines support the stems and branches of the cactus." ]
2
[ "the collision of one star with another", "the circulatory and respiratory systems", "Spines protect the cactus from animals.", "the size of each body cell" ]
Mercury_7012565
Water enters a plant cell through the
{ "text": [ "cell wall.", "chloroplasts.", "mitochondria.", "nucleus." ], "label": [ "A", "B", "C", "D" ] }
A
Water enters a plant cell through the
[ "cell wall.", "chloroplasts.", "mitochondria.", "nucleus." ]
0
[ "cell wall.", "predicting the phases of the Moon.", "The animals swam across the ocean.", "egg, nymph 1, nymph 2, adult" ]
MCAS_1998_4_4
People are developing electric cars that would replace gasoline-burning cars. One major advantage of the electric car is that it
{ "text": [ "accelerates faster.", "causes less pollution.", "gives a smoother ride.", "needs no battery." ], "label": [ "A", "B", "C", "D" ] }
B
People are developing electric cars that would replace gasoline-burning cars. One major advantage of the electric car is that it
[ "accelerates faster.", "causes less pollution.", "gives a smoother ride.", "needs no battery." ]
1
[ "a cell", "causes less pollution.", "fern", "weathering and erosion" ]
NAEP_2000_8_S21+1
Which group of organisms would all be found living in a tropical rain forest?
{ "text": [ "Lizards, insects, cacti, kangaroos", "Vines, palm trees, tree frogs, monkeys", "Evergreens, moose, weasels, mink", "Lichens, mosses, caribou, polar bears" ], "label": [ "A", "B", "C", "D" ] }
B
Which group of organisms would all be found living in a tropical rain forest?
[ "Lizards, insects, cacti, kangaroos", "Vines, palm trees, tree frogs, monkeys", "Evergreens, moose, weasels, mink", "Lichens, mosses, caribou, polar bears" ]
1
[ "wood", "Vines, palm trees, tree frogs, monkeys", "use disposable plates", "ice sublimating" ]
Mercury_7217385
Which SI unit would be most appropriate for recording the length of a typical classroom?
{ "text": [ "gram", "kilogram", "meter", "kilometer" ], "label": [ "A", "B", "C", "D" ] }
C
Which SI unit would be most appropriate for recording the length of a typical classroom?
[ "gram", "kilogram", "meter", "kilometer" ]
2
[ "All foods taste good.", "refrigeration and heating systems.", "meter", "absorbed from the soil through the stem" ]
Mercury_7069440
If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects?
{ "text": [ "decreasing the mass of one object", "decreasing the mass of both objects", "moving the objects to one meter apart", "moving the objects to three meters apart" ], "label": [ "A", "B", "C", "D" ] }
C
If two objects are two meters apart, which of these changes will increase the gravitational force between the two objects?
[ "decreasing the mass of one object", "decreasing the mass of both objects", "moving the objects to one meter apart", "moving the objects to three meters apart" ]
2
[ "a spinning top", "membrane transport of spindle fibers", "moving the objects to one meter apart", "meteors hitting Earth." ]
Mercury_7056840
Which of these cell structures converts nutrients to energy for cell functions?
{ "text": [ "cell membrane", "chloroplasts", "mitochondria", "endoplasmic reticulum" ], "label": [ "A", "B", "C", "D" ] }
C
Which of these cell structures converts nutrients to energy for cell functions?
[ "cell membrane", "chloroplasts", "mitochondria", "endoplasmic reticulum" ]
2
[ "organisms", "using the same amount of water in each trial", "mitochondria", "causing violent dust storms" ]
Mercury_7103268
Cumulonimbus clouds often form along cold fronts. Which type of weather is most likely to occur along a cold front?
{ "text": [ "moderate temperature with mild breezes", "storms with hurricane winds", "rain with possible severe thunderstorms", "high temperatures with low winds" ], "label": [ "A", "B", "C", "D" ] }
C
Cumulonimbus clouds often form along cold fronts. Which type of weather is most likely to occur along a cold front?
[ "moderate temperature with mild breezes", "storms with hurricane winds", "rain with possible severe thunderstorms", "high temperatures with low winds" ]
2
[ "They are all warm-blooded.", "Water evaporates as its thermal energy is transferred to the air.", "rain with possible severe thunderstorms", "omnivores" ]
Mercury_SC_408894
An eagle is a bird that reproduces by laying its eggs in a dry nest. Which animal lays its eggs in a place most similar to the eagle?
{ "text": [ "amphibian", "fish", "mammal", "reptile" ], "label": [ "A", "B", "C", "D" ] }
D
An eagle is a bird that reproduces by laying its eggs in a dry nest. Which animal lays its eggs in a place most similar to the eagle?
[ "amphibian", "fish", "mammal", "reptile" ]
3
[ "planting", "It is of average brightness compared to planets.", "thermometer", "reptile" ]
Mercury_401993
The chemical formula for water is H_{2}O. What does the formula show about each element in the compound?
{ "text": [ "the number of valence electrons", "the charge of the compound", "the mass of protons in each atom", "the number of atoms of each element" ], "label": [ "A", "B", "C", "D" ] }
D
The chemical formula for water is H_{2}O. What does the formula show about each element in the compound?
[ "the number of valence electrons", "the charge of the compound", "the mass of protons in each atom", "the number of atoms of each element" ]
3
[ "Amazon Rain Forest.", "break off some of its phosphates to release energy", "meter per liter", "the number of atoms of each element" ]
Mercury_400096
How far from Earth is an object that is 10 light years from Earth?
{ "text": [ "10,000 km", "10,000,000 km", "the distance light can travel in 10 years", "ten times the distance from Earth to the Sun" ], "label": [ "A", "B", "C", "D" ] }
C
How far from Earth is an object that is 10 light years from Earth?
[ "10,000 km", "10,000,000 km", "the distance light can travel in 10 years", "ten times the distance from Earth to the Sun" ]
2
[ "cell transport", "A lizard loses its tail and grows a new one.", "the distance light can travel in 10 years", "The breath mint was less soluble than the toothpaste." ]
Mercury_7213168
The oceans most influence global climate by
{ "text": [ "releasing heat to the atmosphere.", "cooling bordering land masses.", "providing continuous onshore winds.", "removing water vapor from the atmosphere." ], "label": [ "A", "B", "C", "D" ] }
A
The oceans most influence global climate by
[ "releasing heat to the atmosphere.", "cooling bordering land masses.", "providing continuous onshore winds.", "removing water vapor from the atmosphere." ]
0
[ "releasing heat to the atmosphere.", "water in the soil.", "coal and oil", "Charles Darwin." ]
Mercury_7124163
A science class investigated the percentage of corn kernels that pop in bags of different brands of popcorn. Fifteen students tested three brands of popcorn each and reported their results to the class. Why did the teacher most likely have so many students report the results?
{ "text": [ "for more accurate results", "for more student participation", "to help simplify the procedure", "to help explain the hypothesis" ], "label": [ "A", "B", "C", "D" ] }
A
A science class investigated the percentage of corn kernels that pop in bags of different brands of popcorn. Fifteen students tested three brands of popcorn each and reported their results to the class. Why did the teacher most likely have so many students report the results?
[ "for more accurate results", "for more student participation", "to help simplify the procedure", "to help explain the hypothesis" ]
0
[ "for more accurate results", "endocrine and skeletal", "decrease the amount of daily exercise.", "from fusion in red giants" ]
Mercury_7077630
The smallest part of an element that retains the properties of the element is the
{ "text": [ "proton.", "nucleus.", "electron.", "atom." ], "label": [ "A", "B", "C", "D" ] }
D
The smallest part of an element that retains the properties of the element is the
[ "proton.", "nucleus.", "electron.", "atom." ]
3
[ "the collapse of a medium-sized star", "between Mercury and Venus", "measuring cup", "atom." ]
Mercury_7037485
What is the composition of the nucleus of an atom?
{ "text": [ "ions and electrons", "electrons and protons", "protons and neutrons", "neutrons and electrons" ], "label": [ "A", "B", "C", "D" ] }
C
What is the composition of the nucleus of an atom?
[ "ions and electrons", "electrons and protons", "protons and neutrons", "neutrons and electrons" ]
2
[ "rotational imbalance due to changes in the location of Earth's poles", "neutron", "protons and neutrons", "There is a thunderstorm watch for the local area." ]
Mercury_SC_LBS11007
Which of these would best be shown as a 3-D model?
{ "text": [ "color spectrum", "magnetic field", "skeletal system", "water cycle" ], "label": [ "A", "B", "C", "D" ] }
C
Which of these would best be shown as a 3-D model?
[ "color spectrum", "magnetic field", "skeletal system", "water cycle" ]
2
[ "plastic straws", "wind.", "skeletal system", "Protista" ]
Mercury_7064365
A root emerges from a seed because of the force of
{ "text": [ "water against the seed coat.", "air pushing on the seed.", "gravity on the seed.", "soil pressing on the seed." ], "label": [ "A", "B", "C", "D" ] }
A
A root emerges from a seed because of the force of
[ "water against the seed coat.", "air pushing on the seed.", "gravity on the seed.", "soil pressing on the seed." ]
0
[ "water against the seed coat.", "The water is too cold for swimming.", "all reproduce in a similar fashion.", "Venus" ]
VASoL_2008_3_14
Which of these is the BEST reason to study weather?
{ "text": [ "To be prepared for storms", "To learn how fossils are formed", "To see changing phases of the Moon", "To find ways for animals to live longer" ], "label": [ "A", "B", "C", "D" ] }
A
Which of these is the BEST reason to study weather?
[ "To be prepared for storms", "To learn how fossils are formed", "To see changing phases of the Moon", "To find ways for animals to live longer" ]
0
[ "To be prepared for storms", "Wavelength", "The mouse went to sleep.", "shape of the shoreline" ]
MCAS_2005_9_3
A recycling plant manager needs to melt 1500 kg of scrap copper to sell to a wire manufacturer. The copper is at 15°C and its melting point is 1083°C. The copper has a specific heat of 385 J/kg x K. How much heat is required to raise the temperature of the copper to its melting point?
{ "text": [ "6.2 x 10^8 J", "6.3 x 10^8 J", "7.7 x 10^8 J", "7.9 x 10^8 J" ], "label": [ "A", "B", "C", "D" ] }
A
A recycling plant manager needs to melt 1500 kg of scrap copper to sell to a wire manufacturer. The copper is at 15°C and its melting point is 1083°C. The copper has a specific heat of 385 J/kg x K. How much heat is required to raise the temperature of the copper to its melting point?
[ "6.2 x 10^8 J", "6.3 x 10^8 J", "7.7 x 10^8 J", "7.9 x 10^8 J" ]
0
[ "6.2 x 10^8 J", "virus", "The soil is exposed to air.", "soil." ]
NYSEDREGENTS_2007_4_30
A decomposer is an organism that
{ "text": [ "preys on other animals", "eats only plants", "recycles nutrients", "uses sunlight to make food" ], "label": [ "A", "B", "C", "D" ] }
C
A decomposer is an organism that
[ "preys on other animals", "eats only plants", "recycles nutrients", "uses sunlight to make food" ]
2
[ "to know how many people take medicines", "an increase in the number of bats", "recycles nutrients", "spinal cord" ]
ACTAAP_2008_5_8
Which type of scientist would study the relationship between simple machines and energy?
{ "text": [ "chemist", "biologist", "physicist", "geologist" ], "label": [ "A", "B", "C", "D" ] }
C
Which type of scientist would study the relationship between simple machines and energy?
[ "chemist", "biologist", "physicist", "geologist" ]
2
[ "metamorphic rocks", "to protect astronauts from solar radiation", "physicist", "combustion" ]
VASoL_2007_3_34
The seeds of an oak come from the ___.
{ "text": [ "fruit", "leaf", "root", "stem" ], "label": [ "A", "B", "C", "D" ] }
A
The seeds of an oak come from the ___.
[ "fruit", "leaf", "root", "stem" ]
0
[ "fruit", "the types of waves.", "drought", "centimeters" ]
MCAS_2007_8_5161
A manufacturer wants to produce a container for food storage that does not break easily and is airtight, inexpensive, and microwave-safe. Which of the following is the best material to use to make the container?
{ "text": [ "glass", "metal", "paper", "plastic" ], "label": [ "A", "B", "C", "D" ] }
D
A manufacturer wants to produce a container for food storage that does not break easily and is airtight, inexpensive, and microwave-safe. Which of the following is the best material to use to make the container?
[ "glass", "metal", "paper", "plastic" ]
3
[ "a graph", "counting the number of birds that fly by.", "volcanic and seismic activity in the crust", "plastic" ]
NYSEDREGENTS_2007_8_30
When carbon and oxygen combine chemically, the mass of the product is
{ "text": [ "greater than the mass of the carbon plus the mass of the oxygen", "equal to the mass of the carbon plus the mass of the oxygen", "equal to the mass of the carbon", "less than the mass of the carbon" ], "label": [ "1", "2", "3", "4" ] }
2
When carbon and oxygen combine chemically, the mass of the product is
[ "greater than the mass of the carbon plus the mass of the oxygen", "equal to the mass of the carbon plus the mass of the oxygen", "equal to the mass of the carbon", "less than the mass of the carbon" ]
1
[ "bass", "equal to the mass of the carbon plus the mass of the oxygen", "an element", "water" ]
Mercury_7217543
Juvenile diabetes is a disease caused by the body's inability to create insulin. The body's white blood cells attack the pancreatic cells that produce insulin. This type of disease is known as
{ "text": [ "a cardiovascular disease.", "an infectious disease.", "a digestive system disease.", "an autoimmune disease." ], "label": [ "A", "B", "C", "D" ] }
D
Juvenile diabetes is a disease caused by the body's inability to create insulin. The body's white blood cells attack the pancreatic cells that produce insulin. This type of disease is known as
[ "a cardiovascular disease.", "an infectious disease.", "a digestive system disease.", "an autoimmune disease." ]
3
[ "ozone", "Kepler", "Mountain river clams evolved from ocean clams.", "an autoimmune disease." ]
Mercury_SC_413625
Which of these describes a property of all matter?
{ "text": [ "All matter gives off light.", "All matter is attracted by magnets.", "All matter is made of atoms.", "All matter dissolves in water." ], "label": [ "A", "B", "C", "D" ] }
C
Which of these describes a property of all matter?
[ "All matter gives off light.", "All matter is attracted by magnets.", "All matter is made of atoms.", "All matter dissolves in water." ]
2
[ "a grain elevator where corn and soybeans are stored", "setting the foundation.", "All matter is made of atoms.", "clay." ]
MCAS_2007_8_5186
Which of the following is a characteristic of all chemical changes?
{ "text": [ "A different state of matter is produced.", "Some mass is converted to energy.", "Some form of light is given off.", "A new material is formed." ], "label": [ "A", "B", "C", "D" ] }
D
Which of the following is a characteristic of all chemical changes?
[ "A different state of matter is produced.", "Some mass is converted to energy.", "Some form of light is given off.", "A new material is formed." ]
3
[ "Nitrogen is used in respiration to generate energy.", "walk in space", "Mars", "A new material is formed." ]
Mercury_7228498
What is the complementary base of adenine in DNA?
{ "text": [ "cytosine", "thymine", "guanine", "uracil" ], "label": [ "A", "B", "C", "D" ] }
B
What is the complementary base of adenine in DNA?
[ "cytosine", "thymine", "guanine", "uracil" ]
1
[ "to help in defense", "thymine", "the cementing together of sediment particles", "trees are used for many purposes." ]
CSZ_2009_8_CSZ30348
What is the density of a 64-g iron cube that displaces 8 mL of water?
{ "text": [ "512 g/mL", "32 g/mL", "8 g/mL", "4 g/mL" ], "label": [ "A", "B", "C", "D" ] }
C
What is the density of a 64-g iron cube that displaces 8 mL of water?
[ "512 g/mL", "32 g/mL", "8 g/mL", "4 g/mL" ]
2
[ "immediate death of skin cells", "yellow light", "8 g/mL", "dendrite" ]
Mercury_401315
What keeps Mars in orbit around the Sun?
{ "text": [ "friction", "gravity", "magnetism", "solar power" ], "label": [ "A", "B", "C", "D" ] }
B
What keeps Mars in orbit around the Sun?
[ "friction", "gravity", "magnetism", "solar power" ]
1
[ "trenches", "gravity", "It will introduce an invasive species.", "the period of rotation of Earth around its axis" ]
NYSEDREGENTS_2011_8_29
Which material is primarily a mixture of weathered rock and organic matter?
{ "text": [ "minerals", "soil", "ocean water", "seashells" ], "label": [ "1", "2", "3", "4" ] }
2
Which material is primarily a mixture of weathered rock and organic matter?
[ "minerals", "soil", "ocean water", "seashells" ]
1
[ "people fishing from a boat", "soil", "Animal migration is stopped.", "Y has changed into a new compound." ]
CSZ_2005_5_CSZ10170
How do plants most commonly break large rocks into smaller pieces?
{ "text": [ "Plant leaves insulate surrounding rocks from extreme temperatures.", "Plant roots grow into cracks in rocks.", "Seeds from plants fall onto rocks and release acidic compounds.", "Stems of plants surround and squeeze rocks." ], "label": [ "A", "B", "C", "D" ] }
B
How do plants most commonly break large rocks into smaller pieces?
[ "Plant leaves insulate surrounding rocks from extreme temperatures.", "Plant roots grow into cracks in rocks.", "Seeds from plants fall onto rocks and release acidic compounds.", "Stems of plants surround and squeeze rocks." ]
1
[ "pour the water out of the container", "Plant roots grow into cracks in rocks.", "glowing campfire log", "snow" ]
Mercury_7212975
Which statement best describes the climate of Nevada?
{ "text": [ "Temperature at night dropped behind a cold front.", "Wind increased during the day.", "Humidity is low throughout every summer.", "Air pressure increased gradually all week." ], "label": [ "A", "B", "C", "D" ] }
C
Which statement best describes the climate of Nevada?
[ "Temperature at night dropped behind a cold front.", "Wind increased during the day.", "Humidity is low throughout every summer.", "Air pressure increased gradually all week." ]
2
[ "Vehicle choices available to consumers had to be expanded.", "diameter of the orbit of a planet around the sun", "Humidity is low throughout every summer.", "protein" ]
Mercury_7220920
What is the primary function of skin cells?
{ "text": [ "to deliver messages to the brain", "to generate movement of muscles", "to provide a physical barrier to the body", "to produce carbohydrates for energy" ], "label": [ "A", "B", "C", "D" ] }
C
What is the primary function of skin cells?
[ "to deliver messages to the brain", "to generate movement of muscles", "to provide a physical barrier to the body", "to produce carbohydrates for energy" ]
2
[ "a stone rolling downhill", "attracts insects for food", "to provide a physical barrier to the body", "loss of thermal stability" ]
MCAS_2004_5_3
Some plants grow only in specific places in the world. Some cacti, for example, grow only in deserts. Which of the following is most important in determining where a plant can grow and survive?
{ "text": [ "animals", "climate", "tides", "wind" ], "label": [ "A", "B", "C", "D" ] }
B
Some plants grow only in specific places in the world. Some cacti, for example, grow only in deserts. Which of the following is most important in determining where a plant can grow and survive?
[ "animals", "climate", "tides", "wind" ]
1
[ "asking a question", "climate", "Organs", "Conduction through the atmosphere causes evaporation to occur over oceans, resulting in rain." ]
MEA_2013_8_17
A geologist found fossils of horse bones in different rock layers of a canyon. The fossils in the lower levels show shorter bones than those in the upper-level fossils. Which conclusion is based on the geologist's observations?
{ "text": [ "Horse's reproduce using two parents.", "Horse's became larger over time.", "Smaller Horse's went extinct, and then larger Horse's formed.", "Smaller Horse's are better suited to the environment than larger Horse's." ], "label": [ "A", "B", "C", "D" ] }
B
A geologist found fossils of horse bones in different rock layers of a canyon. The fossils in the lower levels show shorter bones than those in the upper-level fossils. Which conclusion is based on the geologist's observations?
[ "Horse's reproduce using two parents.", "Horse's became larger over time.", "Smaller Horse's went extinct, and then larger Horse's formed.", "Smaller Horse's are better suited to the environment than larger Horse's." ]
1
[ "fluorocarbons from aerosol spray cans", "Horse's became larger over time.", "Hardy-Weinberg", "creating recessive genes in the microbes" ]
Mercury_7267820
Which of the following is a reason life in the outermost planets is less likely than life on planets nearer the Sun?
{ "text": [ "They have too little mass.", "They have too much mass.", "Their surfaces are extremely hot.", "Their surfaces are extremely cold." ], "label": [ "A", "B", "C", "D" ] }
D
Which of the following is a reason life in the outermost planets is less likely than life on planets nearer the Sun?
[ "They have too little mass.", "They have too much mass.", "Their surfaces are extremely hot.", "Their surfaces are extremely cold." ]
3
[ "commensalistic.", "evaporation and infiltration", "The gas smells different from the air.", "Their surfaces are extremely cold." ]
NCEOGA_2013_8_2
Which statement best explains how periods on the periodic table are organized?
{ "text": [ "increasing atomic number from left to right", "increasing number of neutrons from left to right", "decreasing number of electrons from left to right", "decreasing atomic mass number from left to right" ], "label": [ "A", "B", "C", "D" ] }
A
Which statement best explains how periods on the periodic table are organized?
[ "increasing atomic number from left to right", "increasing number of neutrons from left to right", "decreasing number of electrons from left to right", "decreasing atomic mass number from left to right" ]
0
[ "increasing atomic number from left to right", "CsO", "Sample 2 has pink, gray, and white crystals grown together.", "magnets." ]
Mercury_SC_408781
Nonrenewable sources of energy have limited supplies. Researchers are developing devices that will make renewable energy more available. Which is a source of renewable energy?
{ "text": [ "coal", "gasoline", "oil", "wind" ], "label": [ "A", "B", "C", "D" ] }
D
Nonrenewable sources of energy have limited supplies. Researchers are developing devices that will make renewable energy more available. Which is a source of renewable energy?
[ "coal", "gasoline", "oil", "wind" ]
3
[ "medicine", "thermometer, calculator, magnet", "thermometer", "wind" ]
Mercury_7268100
Which of these living things in a grassland ecosystem depend on the presence of a variety of bacteria and other microorganisms in the soil?
{ "text": [ "worms only", "green plants only", "plants and animals only", "all the organisms in the ecosystem" ], "label": [ "A", "B", "C", "D" ] }
D
Which of these living things in a grassland ecosystem depend on the presence of a variety of bacteria and other microorganisms in the soil?
[ "worms only", "green plants only", "plants and animals only", "all the organisms in the ecosystem" ]
3
[ "magma", "wave patterns", "metals and gases", "all the organisms in the ecosystem" ]
Mercury_7136080
An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
{ "text": [ "They break down dead organisms to return nutrients to the soil.", "They produce their own food for survival.", "They play a role in preventing weathering and erosion.", "They provide most of the energy to consumers." ], "label": [ "A", "B", "C", "D" ] }
A
An ecosystem is a community of organisms interacting with their physical environment. Why are decomposers an important part of ecosystems?
[ "They break down dead organisms to return nutrients to the soil.", "They produce their own food for survival.", "They play a role in preventing weathering and erosion.", "They provide most of the energy to consumers." ]
0
[ "They break down dead organisms to return nutrients to the soil.", "constant.", "tissues.", "a rainstorm" ]
NYSEDREGENTS_2011_8_26
Which term identifies a group of cells that work together to perform a similar function?
{ "text": [ "molecule", "organ", "organism", "tissue" ], "label": [ "1", "2", "3", "4" ] }
4
Which term identifies a group of cells that work together to perform a similar function?
[ "molecule", "organ", "organism", "tissue" ]
3
[ "They regularly replenish water on Earth.", "result", "transcription", "tissue" ]
Mercury_7015873
Which of these statements is not considered part of the Big Bang Theory?
{ "text": [ "The universe is expanding.", "The universe never changes.", "The universe began in a hot, dense state.", "The universe began at a single point and time." ], "label": [ "A", "B", "C", "D" ] }
B
Which of these statements is not considered part of the Big Bang Theory?
[ "The universe is expanding.", "The universe never changes.", "The universe began in a hot, dense state.", "The universe began at a single point and time." ]
1
[ "organism", "The universe never changes.", "provides energy", "organ" ]
Mercury_7194338
Cells in the body use oxygen (O2) for cellular respiration. Which is the result of cellular respiration?
{ "text": [ "ATP is produced and carbon dioxide (CO2) is released.", "ATP is consumed and carbon dioxide (CO2) is released.", "ATP is produced and carbon dioxide (CO2) is absorbed.", "ATP is consumed and carbon dioxide (CO2) is absorbed." ], "label": [ "A", "B", "C", "D" ] }
A
Cells in the body use oxygen (O2) for cellular respiration. Which is the result of cellular respiration?
[ "ATP is produced and carbon dioxide (CO2) is released.", "ATP is consumed and carbon dioxide (CO2) is released.", "ATP is produced and carbon dioxide (CO2) is absorbed.", "ATP is consumed and carbon dioxide (CO2) is absorbed." ]
0
[ "ATP is produced and carbon dioxide (CO2) is released.", "require sunlight for photosynthesis", "protection", "they take millions of years to start producing energy." ]
Mercury_7068548
Which geologic process is absent from the Gulf Coast states?
{ "text": [ "beach development", "subduction zones", "weathering", "erosion" ], "label": [ "A", "B", "C", "D" ] }
B
Which geologic process is absent from the Gulf Coast states?
[ "beach development", "subduction zones", "weathering", "erosion" ]
1
[ "genetic engineering", "subduction zones", "matter", "dead animals" ]
NYSEDREGENTS_2016_4_11
The human body gets the energy it needs for growth and repair directly from
{ "text": [ "soil", "food", "sunlight", "water" ], "label": [ "A", "B", "C", "D" ] }
B
The human body gets the energy it needs for growth and repair directly from
[ "soil", "food", "sunlight", "water" ]
1
[ "creation of haploid gametes", "food", "butterfly", "Drinking water before exercise prevents the body from sweating." ]
Mercury_7085173
In what type of rock would a geologist most likely find evidence of ancient life?
{ "text": [ "sedimentary", "foliated", "metamorphic", "volcanic" ], "label": [ "A", "B", "C", "D" ] }
A
In what type of rock would a geologist most likely find evidence of ancient life?
[ "sedimentary", "foliated", "metamorphic", "volcanic" ]
0
[ "sedimentary", "near the protons", "gold", "The trees could not make bark." ]
ACTAAP_2010_5_3
During the Apollo 14 moon landing, astronauts played golf on the moon. Which of the following would be less on the moon than on Earth?
{ "text": [ "The mass of the golf ball", "The weight of the golf ball", "The mass and size of the golf ball", "The weight and size of the golf ball" ], "label": [ "A", "B", "C", "D" ] }
B
During the Apollo 14 moon landing, astronauts played golf on the moon. Which of the following would be less on the moon than on Earth?
[ "The mass of the golf ball", "The weight of the golf ball", "The mass and size of the golf ball", "The weight and size of the golf ball" ]
1
[ "to collect pollen from other plants to make seeds", "The weight of the golf ball", "the number of ounces of cereal in the box", "Oxygen is absorbed from the air." ]
Mercury_SC_400596
Evaporation, condensation, and precipitation are all processes which occur in the
{ "text": [ "water cycle.", "energy cycle.", "carbon cycle.", "nitrogen cycle." ], "label": [ "A", "B", "C", "D" ] }
A
Evaporation, condensation, and precipitation are all processes which occur in the
[ "water cycle.", "energy cycle.", "carbon cycle.", "nitrogen cycle." ]
0
[ "water cycle.", "Carbon dioxide blocks ultraviolet light.", "liquid", "germinating and reproducing" ]
AIMS_2009_4_10
Directions Read the information about wind erosion then answer the question. Wind can cause erosion that changes the surface of the Earth. Wind erosion can have negative effects on the environment by removing soil and polluting the air during dust storms. Walter wanted to find out if faster wind speeds increased the am...
{ "text": [ "anemometer", "barometer", "rain gauge", "thermometer" ], "label": [ "A", "B", "C", "D" ] }
A
Directions Read the information about wind erosion then answer the question. Wind can cause erosion that changes the surface of the Earth. Wind erosion can have negative effects on the environment by removing soil and polluting the air during dust storms. Walter wanted to find out if faster wind speeds increased the am...
[ "anemometer", "barometer", "rain gauge", "thermometer" ]
0
[ "anemometer", "a vibration", "a desert plain", "galena" ]
CSZ_2008_5_CSZ10104
Where does oxygen-rich blood go after leaving the lungs?
{ "text": [ "the brain.", "the heart.", "the kidney.", "the stomach." ], "label": [ "A", "B", "C", "D" ] }
B
Where does oxygen-rich blood go after leaving the lungs?
[ "the brain.", "the heart.", "the kidney.", "the stomach." ]
1
[ "circulation", "the heart.", "noise", "hot and wet." ]
MDSA_2008_5_1
Chemical pesticides are sometimes sprayed on crops to kill insects that eat the crops. People have different viewpoints about the use of pesticides on crops. What might be a concern about using pesticides on the crops?
{ "text": [ "Will the food ripen?", "Will the food stay fresh?", "Will the food harm humans?", "Will the food harm bugs in the home?" ], "label": [ "A", "B", "C", "D" ] }
C
Chemical pesticides are sometimes sprayed on crops to kill insects that eat the crops. People have different viewpoints about the use of pesticides on crops. What might be a concern about using pesticides on the crops?
[ "Will the food ripen?", "Will the food stay fresh?", "Will the food harm humans?", "Will the food harm bugs in the home?" ]
2
[ "Wave energy is renewable. Tidal energy is nonrenewable.", "the accessibility to a major highway", "Will the food harm humans?", "thousands of years" ]
Mercury_SC_405295
The number of fish in a lake suddenly increases. How will the increase most likely affect the lake?
{ "text": [ "There will be less water in the lake.", "More plants will grow in the lake.", "More frogs will live in the lake.", "There will be fewer insects in the lake." ], "label": [ "A", "B", "C", "D" ] }
D
The number of fish in a lake suddenly increases. How will the increase most likely affect the lake?
[ "There will be less water in the lake.", "More plants will grow in the lake.", "More frogs will live in the lake.", "There will be fewer insects in the lake." ]
3
[ "river.", "absorb nutrients from food.", "mixture", "There will be fewer insects in the lake." ]
AKDE&ED_2012_8_24
Which statement correctly describes a relationship between two human body systems?
{ "text": [ "The digestive system absorbs nutrients which are transported by the nervous system.", "The digestive system absorbs nutrients which are transported by the circulatory system.", "The circulatory system exchanges gases which are transported by the nervous system.", "The circulatory system e...
B
Which statement correctly describes a relationship between two human body systems?
[ "The digestive system absorbs nutrients which are transported by the nervous system.", "The digestive system absorbs nutrients which are transported by the circulatory system.", "The circulatory system exchanges gases which are transported by the nervous system.", "The circulatory system exchanges gases which...
1
[ "a compound", "The digestive system absorbs nutrients which are transported by the circulatory system.", "evaporation and condensation", "Frog" ]
AKDE&ED_2012_8_12
Which statement best explains Earth's day and night cycle?
{ "text": [ "Earth rotates once each day on its axis.", "Earth revolves around the Sun each year.", "The Sun is closest to Earth during the day.", "The tilt of Earth changes throughout the year." ], "label": [ "A", "B", "C", "D" ] }
A
Which statement best explains Earth's day and night cycle?
[ "Earth rotates once each day on its axis.", "Earth revolves around the Sun each year.", "The Sun is closest to Earth during the day.", "The tilt of Earth changes throughout the year." ]
0
[ "Earth rotates once each day on its axis.", "more powerful legs for burrowing", "All fungi are multicellular heterotrophs.", "a sailboat" ]
NCEOGA_2013_5_S1
What is the first thing a student should do if an accident happens during a science experiment?
{ "text": [ "report to the teacher", "clean the laboratory station", "locate the nearest exit", "put on safety goggles" ], "label": [ "A", "B", "C", "D" ] }
A
What is the first thing a student should do if an accident happens during a science experiment?
[ "report to the teacher", "clean the laboratory station", "locate the nearest exit", "put on safety goggles" ]
0
[ "report to the teacher", "send them to be dumped in a remote area", "competition between consumers", "A bicycle" ]
Mercury_178115
Which of the following helps keep the Moon in its orbit?
{ "text": [ "friction", "gravity", "longitude", "latitude" ], "label": [ "A", "B", "C", "D" ] }
B
Which of the following helps keep the Moon in its orbit?
[ "friction", "gravity", "longitude", "latitude" ]
1
[ "The grass has a higher temperature.", "gravity", "the ability to attract insects", "strong winds and storms" ]
NCEOGA_2013_5_44
Which process allows green plants to control the amount of water stored in their leaves?
{ "text": [ "photosynthesis", "condensation", "respiration", "transpiration" ], "label": [ "A", "B", "C", "D" ] }
D
Which process allows green plants to control the amount of water stored in their leaves?
[ "photosynthesis", "condensation", "respiration", "transpiration" ]
3
[ "to protect the tree from disease", "One Earth-year would be 14% longer.", "number of fish.", "transpiration" ]
Mercury_183698
What is a job of white blood cells?
{ "text": [ "transport oxygen", "remove waste", "fight disease", "enable reproduction" ], "label": [ "A", "B", "C", "D" ] }
C
What is a job of white blood cells?
[ "transport oxygen", "remove waste", "fight disease", "enable reproduction" ]
2
[ "The turtle that finished first is fastest.", "texture", "fight disease", "think that the class results are wrong" ]
Mercury_SC_LBS10028
Which is an example of kinetic energy?
{ "text": [ "a book sitting on a shelf", "a ball rolling down a hill", "a runner about to start a race", "a window getting hot from the sun" ], "label": [ "A", "B", "C", "D" ] }
B
Which is an example of kinetic energy?
[ "a book sitting on a shelf", "a ball rolling down a hill", "a runner about to start a race", "a window getting hot from the sun" ]
1
[ "prey", "a ball rolling down a hill", "turn out the lights to see better.", "how to grow" ]
Mercury_7216930
A new mutation that occurs in which type of cell can be passed on to offspring?
{ "text": [ "blood cell", "nerve cell", "brain cell", "egg cell" ], "label": [ "A", "B", "C", "D" ] }
D
A new mutation that occurs in which type of cell can be passed on to offspring?
[ "blood cell", "nerve cell", "brain cell", "egg cell" ]
3
[ "Producer", "Investigations must be conducted by trained scientists.", "high-speed Internet", "egg cell" ]
Mercury_7004603
When too much salt is detected in the bloodstream, the brain secretes a hormone that helps the body retain water by reducing the amount of urine produced. This is an example of
{ "text": [ "a feedback loop.", "an acquired trait.", "a balanced ecosystem.", "a symbiotic relationship." ], "label": [ "A", "B", "C", "D" ] }
A
When too much salt is detected in the bloodstream, the brain secretes a hormone that helps the body retain water by reducing the amount of urine produced. This is an example of
[ "a feedback loop.", "an acquired trait.", "a balanced ecosystem.", "a symbiotic relationship." ]
0
[ "a feedback loop.", "a territorial boundary", "shape", "the lake to become deeper." ]
Mercury_7026880
Which of these is a safe practice in a laboratory investigation when working with chemicals?
{ "text": [ "pouring unused chemicals down the sink", "mixing leftover chemicals in one container", "wearing safety goggles when working with chemicals", "returning unused chemicals to the original container" ], "label": [ "A", "B", "C", "D" ] }
C
Which of these is a safe practice in a laboratory investigation when working with chemicals?
[ "pouring unused chemicals down the sink", "mixing leftover chemicals in one container", "wearing safety goggles when working with chemicals", "returning unused chemicals to the original container" ]
2
[ "surface winds.", "The tea's freezing point increases.", "wearing safety goggles when working with chemicals", "decreasing the mass of both objects" ]
Mercury_7015593
Which change in the environment would have a negative effect on the survival of a species in an ecosystem?
{ "text": [ "increase in the population of prey", "introduction of a competing species", "decrease in the population of predators", "increase in genetic diversity of the species" ], "label": [ "A", "B", "C", "D" ] }
B
Which change in the environment would have a negative effect on the survival of a species in an ecosystem?
[ "increase in the population of prey", "introduction of a competing species", "decrease in the population of predators", "increase in genetic diversity of the species" ]
1
[ "melting", "introduction of a competing species", "melting", "19.3 g" ]
Mercury_7084333
An element is identified by
{ "text": [ "its number of protons.", "the atomic mass.", "the type of charge.", "its number of isotopes." ], "label": [ "A", "B", "C", "D" ] }
A
An element is identified by
[ "its number of protons.", "the atomic mass.", "the type of charge.", "its number of isotopes." ]
0
[ "its number of protons.", "They eat by phagocytosis.", "hemisphere.", "nitrogen" ]
VASoL_2008_3_2
Which of these dissolve in water?
{ "text": [ "Sand grains", "Sugar cubes", "Plastic straws", "Wooden spoons" ], "label": [ "A", "B", "C", "D" ] }
B
Which of these dissolve in water?
[ "Sand grains", "Sugar cubes", "Plastic straws", "Wooden spoons" ]
1
[ "Pb_{2}N(aq) + NaI(aq) -> Pb_{2}I(s) NaN(aq)", "Sugar cubes", "increasing the growth of grasses", "transpiration." ]
OHAT_2010_5_43
What is the main function of a plant stem?
{ "text": [ "to collect pollen from other plants to make seeds", "to absorb water and plant nutrients from the soil", "to carry food and water to the rest of the plant", "to make food for the plant" ], "label": [ "A", "B", "C", "D" ] }
C
What is the main function of a plant stem?
[ "to collect pollen from other plants to make seeds", "to absorb water and plant nutrients from the soil", "to carry food and water to the rest of the plant", "to make food for the plant" ]
2
[ "mass", "All behavior is affected neither by experience nor inheritance.", "to carry food and water to the rest of the plant", "an avalanche" ]
NYSEDREGENTS_2011_8_12
Naturally occurring variations within a species are mainly the result of mutations and
{ "text": [ "sexual reproduction", "dynamic equilibrium", "metabolism", "camouflage" ], "label": [ "1", "2", "3", "4" ] }
1
Naturally occurring variations within a species are mainly the result of mutations and
[ "sexual reproduction", "dynamic equilibrium", "metabolism", "camouflage" ]
0
[ "sexual reproduction", "circularly", "bones.", "crust" ]
CSZ30112
As a sample of water turns to ice,
{ "text": [ "new molecules are formed.", "the mass of the sample is increased.", "the arrangement of the molecules changes.", "energy is absorbed by the molecules." ], "label": [ "A", "B", "C", "D" ] }
C
As a sample of water turns to ice,
[ "new molecules are formed.", "the mass of the sample is increased.", "the arrangement of the molecules changes.", "energy is absorbed by the molecules." ]
2
[ "retina.", "recycling nutrients", "the arrangement of the molecules changes.", "oxygen" ]
Mercury_SC_413077
An ice cube is placed in a pan. The pan is placed over an open flame. Which change will most likely happen over time?
{ "text": [ "The ice changes to a liquid and back to a solid.", "The ice changes to a liquid then to a gas.", "The ice changes to a gas and back to a solid.", "The ice changes to a gas then to a liquid." ], "label": [ "A", "B", "C", "D" ] }
B
An ice cube is placed in a pan. The pan is placed over an open flame. Which change will most likely happen over time?
[ "The ice changes to a liquid and back to a solid.", "The ice changes to a liquid then to a gas.", "The ice changes to a gas and back to a solid.", "The ice changes to a gas then to a liquid." ]
1
[ "Recessive forms of genes are always visible in offspring.", "The ice changes to a liquid then to a gas.", "calcium", "They are made of the same materials." ]
Mercury_SC_407369
Byron is investigating how temperature affects mold growth on bread. Before starting his procedure, Byron states in his journal that he thinks wet bread placed in the refrigerator will grow the most mold. Which term best describes Byron's statement?
{ "text": [ "conclusion", "result", "hypothesis", "variable" ], "label": [ "A", "B", "C", "D" ] }
C
Byron is investigating how temperature affects mold growth on bread. Before starting his procedure, Byron states in his journal that he thinks wet bread placed in the refrigerator will grow the most mold. Which term best describes Byron's statement?
[ "conclusion", "result", "hypothesis", "variable" ]
2
[ "thermal energy to chemical energy", "a food chain", "hypothesis", "withstand compression." ]
MCAS_1998_4_16
The telephone was invented in Boston by
{ "text": [ "Alexander Graham Bell.", "Samuel F. B. Morse.", "Henry Ford.", "Thomas Alva Edison." ], "label": [ "A", "B", "C", "D" ] }
A
The telephone was invented in Boston by
[ "Alexander Graham Bell.", "Samuel F. B. Morse.", "Henry Ford.", "Thomas Alva Edison." ]
0
[ "Alexander Graham Bell.", "lots of animal bones.", "has an odor.", "volume" ]
Mercury_416462
Which characteristic can an amoeba change that a paramecium cannot change?
{ "text": [ "sex", "shape", "color", "position" ], "label": [ "A", "B", "C", "D" ] }
B
Which characteristic can an amoeba change that a paramecium cannot change?
[ "sex", "shape", "color", "position" ]
1
[ "final velocity.", "shape", "are pulled by the force of gravity.", "herbicide" ]
CSZ_2006_5_CSZ10266
A metal spoon was left in a pot of boiling soup. The cook burned a finger by touching the spoon. Why did the finger get burned?
{ "text": [ "The metal spoon chemically reacted with the cook's hand.", "The metal spoon conducted electricity to the cook's hand.", "The metal spoon conducted heat to the cook's hand.", "The metal spoon insulated the cook's hand." ], "label": [ "A", "B", "C", "D" ] }
C
A metal spoon was left in a pot of boiling soup. The cook burned a finger by touching the spoon. Why did the finger get burned?
[ "The metal spoon chemically reacted with the cook's hand.", "The metal spoon conducted electricity to the cook's hand.", "The metal spoon conducted heat to the cook's hand.", "The metal spoon insulated the cook's hand." ]
2
[ "unicellular", "forms six-sided crystals", "The metal spoon conducted heat to the cook's hand.", "reproduction" ]