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{ "text": [ "Planetary density will decrease.", "Planetary years will become longer.", "Planetary days will become shorter.", "Planetary gravity will become stronger." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "buildings will be built faster", "buildings will be made safer", "building designs will look nicer", "building materials will be cheaper" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Chemical energy is absorbed through the roots.", "Light energy is converted to chemical energy.", "Chlorophyll in the leaf captures light energy.", "Sunlight is converted into chlorophyll." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "the control", "the hypothesis statement", "the dependent (responding) variable", "the independent (manipulated) variable" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "They have each lost kinetic energy.", "They have each gained the same amount of potential energy.", "They have each lost the same amount of potential energy.", "They have each gained one-half of their maximum kinetic energy." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "a non-infectious, cell-cycle disease", "an infectious, cell-cycle disease", "a non-infectious, chronic disease", "an infectious, chronic disease" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "to repare for migration before winter", "to provide warmth during the cold winter months", "to store food that will be eaten over the winter months", "to protect the grasses and seeds from decay before winter" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "There was once more water in the area.", "The area was once grassland.", "The climate in the area was once tropical.", "There are active faults in the area." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "The chicken population would go down.", "Populations of mice and rats would increase.", "Another bird of prey would replace the hawk.", "The chickens would have a lower rate of disease." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "the atom", "the electron", "the nucleus", "the proton" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "life processes", "size differences", "plasma membranes", "energy molecules" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "The Sun influences the formation of waves.", "The Sun creates water particles.", "The Sun's rays cause organisms to come to the surface.", "The Sun provides minerals." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "32° F", "41° F", "78° F", "98° F" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Repeat the investigation.", "Write a report of the results.", "Make a table for recording data.", "Make daily observations of the light bulbs." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "ozone", "methane", "water vapor", "carbon dioxide" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "0 degrees Celsius", "32 degrees Celsius", "100 degrees Celsius", "212 degrees Celsius" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "exclude research on teeth or bones", "predict what the next discovery will be", "analyze new data as it becomes available", "delete earlier reports that were missing the new findings" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "from the ice to the tea", "from the tea to the ice", "from the pitcher to the tea", "from the ice to the pitcher" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "the price of boards will increase", "the price of boards will decrease", "there will be more boards available", "there will be more trees for logging" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "the discovery of the atom.", "better surgical techniques.", "continued experimentation.", "the invention of the microscope." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "building proteins", "breaking down wastes", "controlling the activities of the cell", "converting energy from one form into another" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "H_{2}O -> H + O + H", "2H_{2}O(l) -> 2H_{2}(g) + O_{2}(g)", "H:O:H -> H_{2}O", "H_{2}O(l) -> 2H(g) + O(g)" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Penguins can live in climates with freezing temperatures.", "Penguins are fierce competitors.", "Penguins are some of the most beautiful birds.", "Penguins make great pets." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "43°F.", "50°F.", "73°F.", "90°F." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "gas.", "water.", "wind.", "clouds." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "It condensed.", "It evaporated.", "It became a gas.", "It became a solid." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "It is a constant climate feature throughout the year.", "It is a seasonal weather feature with irregular occurrences.", "It is a continuous weather feature during the season in which it occurs.", "It is a rare event inconsistent with local climate and weather." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Object 1, Object 2, Object 3", "Object 1, Object 3, Object 2", "Object 2, Object 1, Object 3", "Object 2, Object 3, Object 1" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Plankton are colorful.", "Plankton clean the water.", "Plankton release oxygen.", "Plankton reproduce quickly." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Wood is porous.", "Wood is buoyant.", "Wood is light.", "Wood is magnetic." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "how each organism died", "the exact age of the fossils", "when the fossils were discovered", "the type of environment in which the organisms lived" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "its ability to freeze", "its specific heat capacity", "its ability to exist as a liquid", "its high surface tension" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Air is a mixture of gases.", "Ice is a mixture of gases.", "Air is a liquid.", "Ice is a liquid." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "It makes some people upset.", "It takes a long time to be useful.", "It helps explain how things work.", "It causes work to be more difficult." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "sunrise", "equinox", "full moon", "solar eclipse" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Volcanism also characterizes the region.", "Earthquake centers in the region occur at shallow depths.", "The region shows extensive faulting of sediments.", "Equal crust densities are found on opposite sides of the region." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "The sun would be enormous next to an average star.", "The sun would be tiny next to one of the largest stars.", "The sun would be extremely bright next to an average star.", "The sun would be very dim next to one of the smallest stars." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "The gas planets are closer to the Sun.", "The solid planets are closer to the Sun.", "The planets are arranged in order of increasing size.", "The solid planets are much larger than the gas planets." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "to change oxygen into carbon dioxide", "to break down sugar into usable chemicals", "to convert energy from sunlight into food energy", "to allow the passage of carbon dioxide into the plant" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Hydraulic systems are under pressure and pneumatic systems are not.", "Hydraulic systems involve liquids and pneumatic systems involve gases.", "Hydraulic systems are open systems and pneumatic systems are closed systems.", "Hydraulic systems involve fluids in motion and pneumatic systems involve fluids at rest." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "completing its life cycle", "beginning hibernation", "responding to its environment", "preparing for migration" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "The Moon rises.", "The new Moon occurs.", "The Moon cycles through its phases.", "The Moon passes in front of the Sun." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "6", "7", "13", "19" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "the frequency of the wave", "the wavelength of the wave", "the source that created the sound", "the distance between molecules in the medium" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Kinetic energy decreases and potential energy increases.", "Kinetic energy increases and potential energy decreases.", "Both potential energy and kinetic energy decrease.", "Both potential energy and kinetic energy increase." ], "label": [ "1", "2", "3", "4" ] }

{ "text": [ "oil.", "heat.", "a magnet.", "rubbing alcohol." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "radar", "compass", "satellite", "radio" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "balance", "hot plate", "stopwatch", "thermometer" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "embryonic structures.", "homologous structures.", "analogous structures.", "vestigial structures." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "A tiger hunts a deer.", "A mouse runs from a coyote.", "A salmon migrates up a river.", "A woodpecker taps a tree for insects." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "more than 20 g because of the addition of heat", "more than 20 g because there are now two substances", "less than 20 g because oxygen gas is very light", "20 g because no matter is added or removed" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "observe clouds forming", "measure the air temperature", "blow up a beach ball or balloon", "weigh a glass before and after it is filled with water" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "converging boundaries", "diverging boundaries", "transform faults", "rift zones" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "An insect is food for a salmon.", "Water carries a rock downstream.", "A tree removes a gas from the air.", "A flower makes food for a butterfly." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "volcanic eruptions", "tectonic movements", "asteroid impacts", "solar flares" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "A group of people swims in a river.", "A construction crew builds an iron bridge.", "A farmer grows vegetables to sell at a local market.", "A person bakes a cake with electricity produced by a hydroelectric power plant." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "a map", "a diagram", "a chart", "a graph" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "to generate an electric current", "to increase the strength of the magnet", "to heat the copper wire", "to transfer protons to the lightbulb" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Body weight", "Eye color", "Blood type", "Color blindness" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Halve the mass of m_{1} and halve the distance between m_{1} and m_{2}.", "Halve the mass of m_{1} and double the distance between m_{1} and m_{2}.", "Double the mass of m_{1} and halve the distance between m_{1} and m_{2}.", "Double the mass of m_{1} and double the distance between m_{1} and m_{2}." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Na + Cl_{2}", "NaCL + OH", "NaOH + Cl", "NaCl + H_{2}O" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "to scatter seeds", "to capture sunlight", "to shade the trunk", "to collect water" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "circulatory", "digestive", "excretory", "respiratory" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "kidney", "heart", "gill", "skin" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "They both move at the same rate.", "They both move away from light.", "They both move in the same direction.", "They both move toward an energy source." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Traits from two parents are combined.", "More organisms reproduce this way.", "Offspring grow in different environments.", "Offspring come from identical parents." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "W is the softest of the four substances tested.", "W is the hardest of the four substances tested.", "W can scratch Y.", "W can scratch X." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "leaching of soils", "evaporation rates", "runoff from rains", "amounts of sunlight" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "eroding land.", "melting glacial ice.", "volcanic emissions.", "reactions on the sea floor." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Earth is heated by the Sun.", "Mountains direct moist air upward.", "Water forms droplets when cooled.", "Most of Earth is covered with water." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "4", "3", "2", "1" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "a large funnel", "a screen filter", "a horseshoe magnet", "a magnifying glass" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "depths of the oceans.", "speed of currents in the oceans.", "chemical compositions of the oceans.", "amount of dissolved oxygen in the oceans." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "stop flowing.", "create waves.", "move faster and cleaner.", "become deeper and wider." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "nonliving parts of the environment", "living organisms in the environment", "health of the living organisms in the environment", "protection, management, and renewal of resources" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "only the Sun", "the Sun and the Moon", "the Sun, the Moon, and some planets", "the Sun, the Moon, some planets, and comets" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "compare the shapes of the two cells", "check to see which diagram shows a nucleus", "check to see which diagram shows cytoplasm", "compare the number of vacuoles in the two cells" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "when tadpoles need to swim immediately", "when there is a limited amount of water in their environment", "when there is a decrease in the number of predators", "when tadpoles need to blend in with their surroundings" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Gravity exerts a balanced force on the object.", "An unbalanced force causes acceleration.", "Friction is applied to the object.", "The forces acting on the object are in equilibrium." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "cut grass", "paper cups", "newspapers", "cut down trees" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "emission of waste", "respiration in animals", "photosynthesis in plants", "formation of fossil fuels" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "moving through the water", "producing oxygen", "attracting prey", "escaping predators" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "a gas.", "a liquid.", "a solid.", "a vapor." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "lit candles.", "atomic models.", "reflected light.", "the scientific method." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "type of plant", "height of plant", "amount of fertilizer", "type of fertilizer" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "24 hours", "28 days", "13 weeks", "1 year" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "to explain the mechanism that caused the continents to move", "to consider the glacial evidence as outdated", "to explain the extinction of the dinosaurs", "to consider it unlikely that the continents were once together" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Flossing has proven to be an effective method of improving oral health.", "Many infectious diseases, such as gum disease, are caused by microorganisms.", "In general, any method that reduces bacteria in the mouth will improve oral health.", "An individual who flosses daily will be less likely to get gum disease than one who flosses weekly." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "0.025 kg x m/s", "3.8 kg x m/s", "6.0 kg x m/s", "270 kg x m/s" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "creating a dominant allele", "affecting gamete formation", "leading to tumors in tissue", "being passed on to offspring" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "the Milky Way galaxy", "moons of other planets", "asteroids", "Pluto" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "an anchor holding a boat in place", "a snack company producing energy bars", "a colorful sign attracting people into a store", "an elevator transporting supplies from one floor to another" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Only the salt and water is a mixture.", "Only the pepper and water is a solution.", "Both jars contain solutions.", "Both jars contain mixtures." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "construct a prototype of a boat for testing", "calculate the total mass of all of the finished boats", "determine the total amount of weight each boat can carry", "test the strength of each material used to construct the boats" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "alert residents to the possibility of fire.", "warn residents when a dangerous gas is present.", "tell people that it is time to check the smoke detector.", "advise people of an increase in temperature in the home." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "changes in state.", "states of matter.", "properties of matter.", "changes in properties." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "choose the best environment for their adaptations.", "pass beneficial behavior genes onto their offspring.", "alter their behavior based on past experience.", "change their environment in beneficial ways." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "Magma or lava is cooled.", "Materials are pressed together.", "Chemical reactions change minerals.", "Earthquakes cause small pieces to fall." ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "vacuole, chloroplast, nucleus", "cell membrane, nucleus, mitochondrion", "nucleus, cell wall, cell membrane", "mitochondrion, vacuole, cell wall" ], "label": [ "A", "B", "C", "D" ] }

{ "text": [ "The ball makes light.", "The ball reflects light.", "The ball absorbs light and then releases it.", "The ball absorbs light and keeps it inside." ], "label": [ "A", "B", "C", "D" ] }