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What would most likely be measure during an investigation of the water cycle? | [
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Electric circuits provide energy for lightbulbs. Which of these prevents the flow of electrons? | [
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A gene mutates in a type of bacteria. When these bacteria reproduce asexually, this mutation can only be inherited by | [
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Scientists who disagree with the results of an experiment should | [
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The depth of Lake Superior can be measured by sending sound waves to the bottom and measuring the period of time it takes for the reflected sound waves to return to the surface. Which of the following would indicate a shallow depth? | [
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Which would most likely need to happen for a new plant to grow? | [
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Which of the following is a trait that a dog does NOT inherit from its parents? | [
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Use the information to answer the question. Over the last 150 years, the use of fossil fuels has increased, resulting in more carbon dioxide and other greenhouse gases in the atmosphere. Some scientists think that these atmospheric gases will result in global warming. Scientists have recorded data on global temperature changes and have predicted possible changes in sea level that may affect Maryland residents. Which result of global warming will most negatively affect coastal residents in Maryland? | [
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A hard hat would be used to protect a student during which type of investigation? | [
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A student gives a red toy car a push on a wooden floor. The student then pushes the same red toy car on a cement floor. Which question is the student most likely investigating? | [
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A student freezes some orange juice. Which of the following statements best describes how the orange juice is different after it is frozen? | [
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A potassium (K) atom has 20 neutrons, 19 protons and 19 electrons. What is the atomic mass of potassium? | [
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How will a thriving grassland ecosystem most likely be affected by a drought? | [
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Which of the following is an example of an escape strategy that is used to avoid being killed and eaten by predators? | [
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Which of these is only found outside the solar system? | [
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Kevin is observing the sky on a clear night. With the unaided eye he is able to see Venus, Mars, Jupiter, and Saturn. Why would Venus appear to be brighter than the other planets? | [
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Which body system's primary function is the continuation of the species? | [
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Which piece of lab equipment is necessary to determine the mass of 2 teaspoons of sand? | [
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The Sahara Desert in Africa has high daytime temperatures but low nighttime temperatures. Which factor is mainly responsible for low nighttime temperatures in the Sahara Desert? | [
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Where is the smallest negatively-charged particle found in an atom? | [
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Which of the following elements is the least electrically conductive? | [
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Some plants, like redwood trees, may live for thousands of years. Some plants, like the black-eyed Susan wildflower, may only live a few weeks. What would these plants most likely have in common in order to survive? | [
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Which items are needed to create a simple circuit? | [
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Which example describes a behavioral adaptation? | [
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Which statement best describes the relationship between the total amount of water vapor the atmosphere can hold and the temperature of the atmosphere? | [
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When high winds knocked down pine trees in a wooded region, it created a gap in the crowded canopy and allowed sunlight to fall on the ground. The increased sunlight allowed a dense growth of raspberry plants which protected young pine seedlings from being eaten by herbivores. Over time, the pine seedlings grew and blocked sunlight from falling on the woodland floor, thereby preventing growth of more raspberry plants. Which of these terms best describes the process of change observed in this woodlands community? | [
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Which of the following will reduce a home electric bill? | [
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Bluebirds prefer to live near open, grassy places. Where would you most likely find a bluebird? | [
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Which term best describes the life cycle of an insect that reaches the adult stage without being a pupa? | [
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Light is refracted the least when passing through a | [
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A student notices that an inflated balloon gets larger when it is warmed by a lamp. Which best describes the mass of the balloon as a result of this change? | [
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What do the Milky Way Galaxy and other galaxies in the universe have in common? | [
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Which statement best describes the motion of water molecules as the water changes state from steam to liquid? | [
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A wetland habitat can continue to support the birds and fish that live there if people ___. | [
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The ice cubes in a freezer are melting. Which change most likely is causing the ice cubes to melt? | [
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When Chemical X is added to a certain liquid, the chemical breaks into Substances Y and Z. It is not possible to break Substances Y and Z into simpler particles. Which statement is best supported by this evidence? | [
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Carolina wrens and painted buntings are two bird species that live in overlapping territories. They have different requirements for food and nesting. Which term best describes the relationship between the two species? | [
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Emily is riding her bicycle. Which best explains why only some of the energy used to pedal her bicycle is transferred into forward motion of the bicycle? | [
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Biologists are studying the white-tailed deer population in Ohio. Which question could the biologists most likely answer? | [
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Which planet has the longest planetary year? | [
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Students are learning about different types of waves. Which is the least likely way for the students to generate a wave? | [
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A gasoline is advertised as "releasing fewer pollutants" when it is used in cars. For this claim to be accurate, what has most likely happened to the gasoline? | [
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One property of liquids is that they have a definite | [
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Stars are often classified by their apparent brightness in the nighttime sky. Stars can also be classified in many other ways. Which of these is least useful in classifying stars? | [
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A teacher puts a cup of coffee into the cup holder of a car. When the car stops suddenly some of the coffee spills out of the cup. Which statement best explains why the coffee spills? | [
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Which factor most accurately describes the statement "Survival of the fittest" in relation to natural selection? | [
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Which feature of some young birds helps them avoid becoming prey before they learn to fly? | [
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Lighting a match and baking a cake are two actions that involve chemical changes. Why are these actions considered chemical changes? | [
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Which of these determines whether a fertilized egg develops into a toad, a snake, or a lizard? | [
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Sea stars are consumers that live in a tide pool ecosystem that is alternately submerged and exposed by tides. This type of ecosystem contains poisonous anemones and many species of shellfish. The sea star's advantage in this ecosystem is that it can | [
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In which two parts of the water cycle does water absorb energy? | [
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Scientists know that Earth is constantly changing. They are familiar with the processes that are repeated daily, monthly, and yearly. Which of these is a natural event that can be predicted to occur monthly? | [
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Which of the following has the greatest mass? | [
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Which of the following is least involved in the decomposition and decay of dead plants and animals? | [
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Which of these is the most likely effect of cutting down large numbers of trees? | [
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A science teacher filled one balloon with helium gas and a second balloon with carbon dioxide. The helium-filled balloon rose to the ceiling, and the balloon filled with carbon dioxide fell to the floor. Which statement is an inference based on this demonstration? | [
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How does too much fishing in an area affect its ecosystem? | [
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Weather forecasts are more accurate today than in the past due to | [
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The mountain chorus frog is an endangered species in Maryland. In addition to the loss of habitat, what most likely caused this frog population to decline? | [
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Which is a problem with using wind turbines to produce energy? | [
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Many fertilizers contain organic materials that are helpful to an orchard but have a different effect when rain causes them to run off into a freshwater ecosystem. How does the addition of organic waste from fertilizers most commonly affect freshwater ecosystems? | [
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Which element makes up most of the air we breathe. | [
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In a series of chemical reactions, X→Y→Z→A, X converts to Y, Y converts to Z, and Z converts to A. Which term describes the process if the production of A interferes with the conversion of X to Y? | [
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The skin is the largest organ in the human body. Why is skin considered to be an organ? | [
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What do scientists mean when they refer to a population? | [
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A girl walked for 30 minutes. She noticed that she traveled farther in the first 15 minutes of her walk than in the second 15 minutes. What can she conclude about her walk? | [
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A pan of soup is being heated on an electric stove. A metal spoon is used to occasionally stir the soup. Which of the following is an example of heat being transferred by convection? | [
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Which of these statements best describes a possible environmental consequence in constructing a large-scale wind farm to generate electricity? | [
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Which of the following changes occurs as a solid is heated? | [
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Which adaptation often helps an animal attract a mate? | [
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One astronomical unit is the average distance between the Earth and the Sun. This unit is most often used to describe the distance between which two objects? | [
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Which of the following data would be most useful for describing the climate of a specific area? | [
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Sugar is made up of many molecules. When sugar is dissolved in water, what happens to these molecules? | [
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The rate of growth for a species of grass was measured in a treeless yard and tree-shaded yard. The grass grew twice as fast in the treeless yard. Which factor most likely contributed to the difference in growth rate? | [
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As part of a study, a scientist observed a number of different molecular changes in matter. Which of the following observations provides evidence of a physical change? | [
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How can you make liquid water become solid? | [
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Which statement about photosynthesis and respiration is true? | [
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Which of these do scientists offer as the most recent explanation as to why many plants and animals died out at the end of the Mesozoic era? | [
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Some water use is consumptive. Instead of returning to its source, the water evaporates from reservoirs or transpires from crops. How does this type of use most likely affect the hydrosphere? | [
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For a class project, students converted the daily temperatures for the past month from Fahrenheit to Celsius. What is the clearest way for the students to present the information? | [
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Which of the following represents the process of photosynthesis? | [
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0.01489218045026064,
0.0564645454287529,
0.025953259319067,
-0.05261379852890968,
-0.026464... |
Where will a sidewalk feel hottest on a warm, clear day? | [
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0.03248708322644234,
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... |
Which of these most likely has the GREATEST mass? | [
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-0.01... |
Which transition is most responsible for gaps in the fossil record? | [
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Students made lemonade using the following recipe: 100 grams of lemon juice 100 grams of sugar 1,000 grams of water The students combined the lemon juice, sugar, and water in a container. They stirred the lemonade until all the sugar dissolved. They poured the lemonade into a plastic tray and put the tray in a freezer. The next day, the students removed the tray from the freezer and observed that the lemonade was a solid. What is the mass of the solid lemonade? | [
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-0... |
Jennifer and Mark prepared a layer cake using oil and water. After the cake baked in the oven, they added frosting. Which property could be measured with a balance? | [
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... |
Gavin has two rocks. Both rocks are made up entirely of the same mineral. What other property of his two rocks is most likely to be the same? | [
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0.009142200462520123,
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0.0006600366323255002,
-0.009... |
Which energy conversion happens when a person shivers and the energy is transferred to make the muscles and joints move? | [
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0.... |
When a tadpole grows, its gills change into lungs. What does it now need to survive? | [
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0.00395031226798892,
-0.0004... |
What is the greatest contributor to air pollution in the United States? | [
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0.007... |
In which way are rainforests and coral reefs different from ecosystems with few species? | [
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0.006165113765746355,
0.03770... |
What kind of energy change occurs when a battery is operating a remote control toy? | [
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0.0... |
Which results in a chemical change? | [
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Which of these factors affects how fast a sound wave moves? | [
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0.029131190851330757,
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0.033917028456926346,
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0.0... |
Which statement describes a harmful effect of clearing rainforests for farmland? | [
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0.029573969542980194,
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0.032... |
Which of these is an element? | [
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0.004700675141066313,
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-0.... |
Heavy rains cause flooding in a valley. Which animals would most likely thrive? | [
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0.03577041253447533,
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0.05571829527616501,
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0.06250... |
Newly discovered organisms are now classified based on DNA evidence. Which of the following is most helpful to a researcher classifying a newly discovered organism? | [
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0.024565907195210457,
0.009047738276422024,
0.017926473170518875,
0.008317400701344013,
-0.02... |
To conserve the supply of nonrenewable resources, it is best to recycle | [
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0.04349730908870697,
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0.... |
The burning of fossil fuels has increased the carbon dioxide content of the atmosphere. What is a possible effect that the increased amount of carbon dioxide is likely to have on our planet? | [
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0.015471628867089748,
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0.02376069501042366,
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-0.007415511179715395,
0.007333008572459221,
0.004656533244997263,
-0.06837023794651031,
-0... |
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