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Question: A generator converts mechanical energy to electrical energy by using a conducting metal loop turning in a
Answer: magnetic field. |
Question: Deer live in forest for shelter. If the forest was cut down, which situation would most likely happen?
Answer: The deer would move to another forest area. |
Question: Which physical property is important to have in a material used in cookware?
Answer: good conductor of heat |
Question: Which sentence describes a characteristic of offspring produced by sexual reproduction?
Answer: The offspring contain genetic material from both parents. |
Question: What is involved in creating genetically modified bacteria?
Answer: using biotechnology techniques |
Question: Which of the following structures does a frog develop as it changes from a tadpole to an adult frog?
Answer: lungs |
Question: One cause of heat in a car engine is caused by friction between parts. Which of these reduces the amount of heat produced by friction?
Answer: oil |
Question: The primary functions of the digestive system are to break down food, absorb nutrients and excrete wastes. Once food is absorbed, what system is responsible for carrying the nutrients to the body cells?
Answer: circulatory system |
Question: If you breathe on a mirror, part of the mirror clouds up. What are you actually seeing when you see the mirror cloud up?
Answer: Water droplets that formed from cooled water vapor in your breath |
Question: The surface of the Moon is made up of
Answer: craters, highlands, and flat areas |
Question: Which sequence correctly shows the levels of increasing organization in the human body?
Answer: cells -> tissues -> organs -> organ systems |
Question: Which layer of the atmosphere contains the greatest amount of water vapor?
Answer: troposphere |
Question: What should a scientist do to help make sure the results of an experiment are unbiased?
Answer: Ask other scientists to attempt to reproduce the results. |
Question: Which property of water allows it to dissolve many different substances?
Answer: It is a polar molecule. |
Question: Nevada is much drier than regions in California that are at the same latitude. Compared to these regions in California, which feature of Nevada contributes most to this dry climate?
Answer: mountain ranges to the west |
Question: A chemist observed bubbling and fizzing after adding an acid solution to a white powdery substance in a beaker. Which of the following can be inferred?
Answer: The acid and powder formed a new product. |
Question: Which of the following is visible through a reflecting telescope?
Answer: moons around Jupiter |
Question: A student is using hydrochloric acid in an investigation. Which piece of safety equipment is most important during this investigation?
Answer: goggles |
Question: Generally, the deeper rock layers of Earth are older than shallower rock layers. How can the collision of two tectonic plates change the order of the rock layers?
Answer: The rock layers are compressed forming faults and folds. |
Question: Which instrument should a student use to best examine bacteria?
Answer: microscope |
Question: Matter that is vibrating is producing ___.
Answer: sound |
Question: Falling and rising air and water molecules inside of clouds are believed to be factors in the formation of lightning. Which kind of energy transfer is taking place to cause this weather phenomenon?
Answer: mechanical to electrical |
Question: Sleet, rain, snow, and hail are forms of
Answer: precipitation |
Question: A windstorm knocks down many trees in a national park. Timber companies want to get rid of the fallen trees. How would this most likely harm the park ecosystem?
Answer: removes available nutrients |
Question: A plant has yellow flowers. What best explains why the flowers are yellow?
Answer: The flowers of the parent plants were yellow. |
Question: Which tool is used to determine the mass of an object?
Answer: balance |
Question: Prairie dogs can run very quickly. This adaptation enables the prairie dog to
Answer: escape from predators. |
Question: A student has a liquid that does not mix with water. To predict whether the liquid will float on water or sink beneath it, which tools should be used to examine the liquid?
Answer: graduated cylinder and balance |
Question: Samuel investigated the effect of temperature on the growth of snapdragons. He recorded the results from the investigation and found that snapdragons do not grow well in low temperatures. What is the purpose of this conclusion in the scientific process?
Answer: It helps to evaluate the hypothesis. |
Question: Which of the following best describes the purpose of cellular respiration?
Answer: to provide energy for cell activities |
Question: In a meadow ecosystem, mice receive most of the energy they need to survive directly from which of the following sources?
Answer: plants |
Question: Which environmental stimulus causes leaves on certain trees to change color in autumn?
Answer: changes to amount of light |
Question: How does the length of daylight in New York State change from summer to fall?
Answer: It decreases. |
Question: What is the name of the product formed from the reaction shown below? 4Fe(III) + 3O_{2} -> 2Fe_{2}O_{3}
Answer: iron (III) oxide |
Question: What type of galaxy is the Milky Way?
Answer: spiral |
Question: One thing that all human cells have in common is that they
Answer: take in energy. |
Question: Which two systems of the body are interacting when a runner sprains his ankle?
Answer: the muscular system and the nervous system |
Question: Jupiter is the largest planet in the solar system. It rotates on its axis once about every 10 hours. What time period on Earth would be 10 hours long if Earth rotated on its axis once every 10 hours?
Answer: a day |
Question: The elements sulfur (S) and oxygen (O2) combine to form a substance called sulfur dioxide (SO2). Sulfur dioxide is also formed when coal and oil are burned. Sulfur dioxide can best be described as
Answer: a compound |
Question: Which is a major difference between the life cycles of different types of plants?
Answer: the way they reproduce |
Question: Sunlight passes through the windows of a car and causes the car seats to get hot. Which type of energy flow is involved in heating the seats?
Answer: radiation |
Question: When a large oak tree is cut down in a forest, it leaves a gap in the forest canopy which allows smaller trees to quickly grow in the available sunlight. Which interaction is best represented among the smaller trees?
Answer: competition |
Question: How long does it take for the Moon to rotate on its axis?
Answer: one month |
Question: What is one way that humans can maintain good health?
Answer: exercise daily |
Question: Which is an example of a group of cells with a common structure and function?
Answer: muscle tissue |
Question: Sickle cell anemia is a genetic disease caused by an autosomal recessive gene. If each parent carries one sickle cell allele, what are the chances that their child will have sickle cell anemia?
Answer: one in four |
Question: Which statement describes animal embryos?
Answer: represent the earliest stage of development |
Question: The average temperature of the surface of Earth has increased approximately 1°C in the past century. Which reason best explains this increase in temperature?
Answer: higher levels of carbon dioxide in the atmosphere |
Question: As the population in an area grows, water usage increases. Eventually, water usage can outstrip the supply. Which measure to increase the amount of available water demonstrates the best stewardship of the resource?
Answer: reducing water usage through conservation measures |
Question: Which action illustrates a chemical change?
Answer: burning wood chips |
Question: Which tool could be used to help someone count the number of ladybugs on a leaf?
Answer: hand lens |
Question: Which two activities use most of the water used in an average U.S. household?
Answer: flushing toilets and washing clothes |
Question: Which are the best tools to use for growing and studying bacterial cultures?
Answer: Petri dishes |
Question: Which effect would the growing of legume crops such as beans and soybeans have?
Answer: more usable nitrogen for other plants |
Question: Which relationship between Earth's outer core and inner core generates a large portion of Earth's magnetic field?
Answer: their relative motions |
Question: Which order of succession of natural communities would most likely occur in New York State?
Answer: grasses -> bushes -> trees |
Question: White light can be separated into all of its component colors by
Answer: passing the light through a prism. |
Question: An Italian scientist named Alessandro Volta invented the Voltaic pile in 1800. It was able to produce a steady electrical current. Based on this description, what is the modern equivalent of the Voltaic pile?
Answer: a battery |
Question: Which would cause the most soil to erode from a river bank in just a few days?
Answer: water from a flood flowing over the river bank |
Question: A student is measuring a liquid in a graduated cylinder. The student is not tall enough to read the measurement at eye level. Which of these is the best action for the student to take to read the measurement correctly?
Answer: move the graduated cylinder to a lower table |
Question: When Isaac Newton theorized that gravity caused objects to fall to the ground, he had also discovered the force that causes
Answer: the planets to orbit the Sun. |
Question: A disorder is associated with certain flaws in the human respiratory system. Which is most likely a typical symptom of this disorder?
Answer: difficulty breathing |
Question: Which of these is the main contributor to the formation of hurricanes?
Answer: warm ocean air |
Question: Which statement correctly describes why there are fewer than 24 hours of daylight in Alaska during each day in April?
Answer: Earth’s rotation causes both day and night. |
Question: What best describes objects orbiting in the Kuiper Belt?
Answer: icy |
Question: Coal was made from the remains of which ancient ecosystem?
Answer: green swamps |
Question: Which of these describes a location where minerals are most likely to form?
Answer: cooled magma from a volcano |
Question: In 1971, the bones of an extinct flying dinosaur were discovered. This kind of discovery helps everyone learn more about
Answer: history of animal species on Earth. |
Question: Which could be a possible way to prevent wildlife species from becoming endangered?
Answer: establishing more habitats |
Question: The chemical reaction of ethane and oxygen produces carbon dioxide and water. Which is the best form to identify reactants and products of the reaction?
Answer: an equation |
Question: Rheumatoid arthritis is a disease that occurs when the body attacks its own tissues. Which body system becomes disordered first?
Answer: immune |
Question: Variation in which property between water at different temperatures contributes most to the formation of horizontal ocean layers having distinct temperatures?
Answer: density |
Question: Which event would most likely cause a rapid extinction of organisms?
Answer: a large asteroid impact |
Question: When an octopus feels threatened, it can release black ink into the water. The ink MOST likely helps the octopus
Answer: hide from predators. |
Question: Which is a way the agricultural biotechnology industry could have a positive impact on the environment?
Answer: by reducing the need for countries to import food |
Question: The following statements are from an article in a fitness magazine. Which of these is an opinion?
Answer: People should exercise because it makes them feel better. |
Question: Which pair of items will repel each other?
Answer: a negatively-charged plastic strip and a negatively-charged piece of cloth |
Question: In your body, what two organs work together to make sure that oxygen gets to all the other organs of your body?
Answer: Heart and lungs |
Question: Each organ in the digestive system has a specific function. During digestion, food passes from the stomach into the small intestine. Which statement best describes what takes place in the small intestine?
Answer: Nutrients are absorbed from the food. |
Question: Which structure is found in producers in nearly all ecosystems?
Answer: chloroplasts |
Question: A strawberry farmer finds that, after a hard freeze, some of his strawberries are still alive. Which best explains why these strawberries were able to survive?
Answer: They have different genetic variations that cause them to be more resistant to cold temperatures. |
Question: Which event would most likely result in more food for organisms that are scavengers?
Answer: Fish die and sink to the bottom of a pond. |
Question: When you are riding a bicycle at night, your bicycle's reflectors help people in cars see your bicycle. How do bicycle reflectors work?
Answer: They bounce light back from other sources. |
Question: From Earth, the Sun appears brighter than any other star because the Sun is the
Answer: closest star. |
Question: Scientists found fish fossils in the desert. What do the fossils tell about this environment when the fish were alive?
Answer: There were lakes with water plants. |
Question: Chinese and European societies can use different but effective technologies when addressing medical questions. What does this demonstrate?
Answer: Varied approaches can yield successful technologies. |
Question: The exotic plant Melaleuca, or Australian Pine, has increased the intensity of fires across the Everglades. The amount of fuel available for fires has increased due to the presence of the Melaleuca. The Melaleuca releases massive numbers of seeds in response to fire, drought, and herbicide damage. Which best describes the reason the Melaleuca has been able to survive?
Answer: adaptation |
Question: Water that is used to cool nuclear power plants can be released into water bodies, causing an area called a thermal plume. A thermal plume can be 12-18°C warmer than surrounding waters. Although some fish may be attracted to the warmer water, other organisms may not be able to survive. Government officials order a study to determine the effects of a thermal plume in a water body near a nuclear power plant in North Carolina. Which factor most related to temperature should the study focus on in order to determine whether the thermal plume is damaging the health of the water system?
Answer: dissolved oxygen |
Question: What is a galaxy?
Answer: a very large system of stars that is held together by gravity |
Question: Which part of a strawberry plant absorbs most of the water needed by the plant?
Answer: roots |
Question: In cherry tomatoes, red color (R) is dominant to yellow color (r). If two heterozygous plants are crossed, what percentage of the offspring will be yellow?
Answer: 25% |
Question: Which situation is an example of a feedback system in the body that maintains homeostasis?
Answer: the brain signaling blood vessels to return to normal |
Question: Which human organ system produces sperm or egg cells?
Answer: reproductive system |
Question: In the human body the digestion of proteins takes place primarily in which two organs?
Answer: Stomach and small intestine |
Question: What is the source of the organic matter needed for most fertile soils?
Answer: decaying plants |
Question: A scientist finds the bones of a dinosaur. What could help the scientist determine the approximate age of the dinosaur bones?
Answer: the index fossils in the area of the bones |
Question: A pond is near river but not connected to it. What would most likely allow fish to move from the pond to the river?
Answer: a flood |
Question: A characteristic that all living organisms have in common is they
Answer: are made of cells. |
Question: When the cells in an organism divide and reproduce, the organism can grow. Which cell organelle contains the genetic material for reproduction?
Answer: the nucleus |
Question: Measurements of carbon dioxide concentrations in the air taken over the past decade have shown a
Answer: dramatic increase. |
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