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{ "text": [ "sunlight warms soil.", "a ceiling fan blows air.", "flames heat up a pan.", "heat rises in a chimney." ], "label": [ "A", "B", "C", "D" ] }

[ "A: sunlight warms soil.", "B: a ceiling fan blows air.", "C: flames heat up a pan.", "D: heat rises in a chimney." ]

{ "text": [ "increases the weight of the box.", "reduces the gravitational force on the box.", "increases the amount of friction on the box.", "reduces the amount of force applied to the box." ], "label": [ "A", "B", "C", "D" ] }

[ "A: increases the weight of the box.", "B: reduces the gravitational force on the box.", "C: increases the amount of friction on the box.", "D: reduces the amount of force applied to the box." ]

{ "text": [ "find food", "keep warmer", "grow stronger", "escape from predators" ], "label": [ "A", "B", "C", "D" ] }

[ "A: find food", "B: keep warmer", "C: grow stronger", "D: escape from predators" ]

{ "text": [ "clay", "plants", "petroleum", "sand" ], "label": [ "A", "B", "C", "D" ] }

[ "A: clay", "B: plants", "C: petroleum", "D: sand" ]

{ "text": [ "lungs", "heart", "brain", "arms" ], "label": [ "A", "B", "C", "D" ] }

[ "A: lungs", "B: heart", "C: brain", "D: arms" ]

{ "text": [ "molten rocks.", "igneous rocks.", "sedimentary rocks.", "metamorphic rocks." ], "label": [ "A", "B", "C", "D" ] }

[ "A: molten rocks.", "B: igneous rocks.", "C: sedimentary rocks.", "D: metamorphic rocks." ]

{ "text": [ "the distance between Earth and its Moon", "the distance between Jupiter and the Sun", "the distance between the Milky Way and the nearest galaxy", "the distance between the Sun and the center of the Milky Way" ], "label": [ "A", "B", "C", "D" ] }

[ "A: the distance between Earth and its Moon", "B: the distance between Jupiter and the Sun", "C: the distance between the Milky Way and the nearest galaxy", "D: the distance between the Sun and the center of the Milky Way" ]

{ "text": [ "sun tanning lamp", "electric light bulb", "cellular telephone", "electric toaster" ], "label": [ "A", "B", "C", "D" ] }

[ "A: sun tanning lamp", "B: electric light bulb", "C: cellular telephone", "D: electric toaster" ]

{ "text": [ "volume of water in the xylem", "flow of necessary nutrients", "response to environmental factors", "rate of photosynthesis in leaves" ], "label": [ "A", "B", "C", "D" ] }

[ "A: volume of water in the xylem", "B: flow of necessary nutrients", "C: response to environmental factors", "D: rate of photosynthesis in leaves" ]

{ "text": [ "a bright silver and white coloring.", "similar electron configurations.", "strong radioactive properties.", "few or no stable isotopes." ], "label": [ "A", "B", "C", "D" ] }

[ "A: a bright silver and white coloring.", "B: similar electron configurations.", "C: strong radioactive properties.", "D: few or no stable isotopes." ]

{ "text": [ "taking a bath or shower regularly", "handwashing after using the bathroom", "playing on a soccer team", "eating candy instead of lunch" ], "label": [ "A", "B", "C", "D" ] }

[ "A: taking a bath or shower regularly", "B: handwashing after using the bathroom", "C: playing on a soccer team", "D: eating candy instead of lunch" ]

{ "text": [ "incomplete dominance", "polygenic inheritance", "multiple alleles", "recessive genes" ], "label": [ "A", "B", "C", "D" ] }

[ "A: incomplete dominance", "B: polygenic inheritance", "C: multiple alleles", "D: recessive genes" ]

{ "text": [ "minerals are inorganic.", "crystal structure is too hard to determine.", "crystal size is determined by the environment.", "minerals have different recognizable properties." ], "label": [ "A", "B", "C", "D" ] }

[ "A: minerals are inorganic.", "B: crystal structure is too hard to determine.", "C: crystal size is determined by the environment.", "D: minerals have different recognizable properties." ]

{ "text": [ "fission", "fusion", "solar winds", "solar radiation" ], "label": [ "A", "B", "C", "D" ] }

[ "A: fission", "B: fusion", "C: solar winds", "D: solar radiation" ]

{ "text": [ "Chemistry and Physics are major branches of science.", "Life Science is a subject filled with interesting information.", "Geology and Oceanography are subjects in Earth Science.", "Biology is a science that studies complex organisms." ], "label": [ "A", "B", "C", "D" ] }

[ "A: Chemistry and Physics are major branches of science.", "B: Life Science is a subject filled with interesting information.", "C: Geology and Oceanography are subjects in Earth Science.", "D: Biology is a science that studies complex organisms." ]

{ "text": [ "algae, plants", "snakes, wolves, whales", "deer, rabbits, mice", "bacteria, fungi" ], "label": [ "A", "B", "C", "D" ] }

[ "A: algae, plants", "B: snakes, wolves, whales", "C: deer, rabbits, mice", "D: bacteria, fungi" ]

{ "text": [ "by breaking down proteins within the cell", "by directing the process of protein synthesis", "by regulating the storage of cellular proteins", "by controlling the movement of protein molecules" ], "label": [ "A", "B", "C", "D" ] }

[ "A: by breaking down proteins within the cell", "B: by directing the process of protein synthesis", "C: by regulating the storage of cellular proteins", "D: by controlling the movement of protein molecules" ]

{ "text": [ "volcanoes", "the remains of living things", "gases in the atmosphere", "water trapped inside rocks" ], "label": [ "A", "B", "C", "D" ] }

[ "A: volcanoes", "B: the remains of living things", "C: gases in the atmosphere", "D: water trapped inside rocks" ]

{ "text": [ "the total mass of available carbon", "the way organisms use carbon", "the physical state of carbon-containing molecules", "the molecule in which a particular carbon atom is found" ], "label": [ "A", "B", "C", "D" ] }

[ "A: the total mass of available carbon", "B: the way organisms use carbon", "C: the physical state of carbon-containing molecules", "D: the molecule in which a particular carbon atom is found" ]

{ "text": [ "dishwasher", "refrigerator", "electric mixer", "microwave oven" ], "label": [ "A", "B", "C", "D" ] }

[ "A: dishwasher", "B: refrigerator", "C: electric mixer", "D: microwave oven" ]

{ "text": [ "The distance between the Sun and Earth is measured in light years.", "Jupiter and Uranus are considered to be terrestrial planets.", "The asteroid belt is located between Jupiter and Saturn.", "The orbit of Mars is similar to the orbit of Saturn." ], "label": [ "A", "B", "C", "D" ] }

[ "A: The distance between the Sun and Earth is measured in light years.", "B: Jupiter and Uranus are considered to be terrestrial planets.", "C: The asteroid belt is located between Jupiter and Saturn.", "D: The orbit of Mars is similar to the orbit of Saturn." ]

{ "text": [ "height", "weight", "temperature", "volume" ], "label": [ "A", "B", "C", "D" ] }

[ "A: height", "B: weight", "C: temperature", "D: volume" ]

{ "text": [ "insulates heat", "conducts electricity", "strong magnetic force", "liquid at room temperature" ], "label": [ "A", "B", "C", "D" ] }

[ "A: insulates heat", "B: conducts electricity", "C: strong magnetic force", "D: liquid at room temperature" ]

{ "text": [ "day", "revolution", "month", "rotation" ], "label": [ "A", "B", "C", "D" ] }

[ "A: day", "B: revolution", "C: month", "D: rotation" ]

{ "text": [ "They make the plant appetizing to small desert animals.", "They prevent the loss of oxygen through photosynthesis.", "They reduce the loss of water from the plant to the air.", "They provide the storage space for different types of minerals." ], "label": [ "A", "B", "C", "D" ] }

[ "A: They make the plant appetizing to small desert animals.", "B: They prevent the loss of oxygen through photosynthesis.", "C: They reduce the loss of water from the plant to the air.", "D: They provide the storage space for different types of minerals." ]

{ "text": [ "A cell membrane is surrounded by fluid.", "A cell membrane is semipermeable.", "A cell membrane holds organelles in place.", "A cell membrane is found in plant and animal cells." ], "label": [ "A", "B", "C", "D" ] }

[ "A: A cell membrane is surrounded by fluid.", "B: A cell membrane is semipermeable.", "C: A cell membrane holds organelles in place.", "D: A cell membrane is found in plant and animal cells." ]

{ "text": [ "They have limbs.", "They produce their own food.", "They breathe air.", "They have at least one cell." ], "label": [ "A", "B", "C", "D" ] }

[ "A: They have limbs.", "B: They produce their own food.", "C: They breathe air.", "D: They have at least one cell." ]

{ "text": [ "Earth's tilt on its axis", "the Sun's tilt on its axis", "Earth spinning on its axis", "the Sun spinning on its axis" ], "label": [ "A", "B", "C", "D" ] }

[ "A: Earth's tilt on its axis", "B: the Sun's tilt on its axis", "C: Earth spinning on its axis", "D: the Sun spinning on its axis" ]

{ "text": [ "over hunting", "water pollution", "airborne diseases", "increased deforestation" ], "label": [ "A", "B", "C", "D" ] }

[ "A: over hunting", "B: water pollution", "C: airborne diseases", "D: increased deforestation" ]

{ "text": [ "electricity.", "heat.", "magnetism.", "sound." ], "label": [ "A", "B", "C", "D" ] }

[ "A: electricity.", "B: heat.", "C: magnetism.", "D: sound." ]

{ "text": [ "They do not have hereditary material.", "They are not separated from their environments.", "They lack an independent metabolism.", "Their traits do not evolve in response to selection pressures." ], "label": [ "A", "B", "C", "D" ] }

[ "A: They do not have hereditary material.", "B: They are not separated from their environments.", "C: They lack an independent metabolism.", "D: Their traits do not evolve in response to selection pressures." ]

{ "text": [ "glutamate.", "glycerol.", "glycolysis.", "glucose." ], "label": [ "A", "B", "C", "D" ] }

[ "A: glutamate.", "B: glycerol.", "C: glycolysis.", "D: glucose." ]

{ "text": [ "ATP", "mRNA", "tRNA", "DNA" ], "label": [ "A", "B", "C", "D" ] }

[ "A: ATP", "B: mRNA", "C: tRNA", "D: DNA" ]

{ "text": [ "water depth", "water clarity", "water salinity", "water temperature" ], "label": [ "A", "B", "C", "D" ] }

[ "A: water depth", "B: water clarity", "C: water salinity", "D: water temperature" ]

{ "text": [ "a niche.", "a species.", "an adaptation.", "an ecosystem." ], "label": [ "A", "B", "C", "D" ] }

[ "A: a niche.", "B: a species.", "C: an adaptation.", "D: an ecosystem." ]

{ "text": [ "carbon dioxide gas", "solid ice crystals", "nitrogen compounds", "ozone molecules" ], "label": [ "A", "B", "C", "D" ] }

[ "A: carbon dioxide gas", "B: solid ice crystals", "C: nitrogen compounds", "D: ozone molecules" ]

{ "text": [ "It was an atom.", "It was a mixture.", "It was an element.", "It was a compound." ], "label": [ "A", "B", "C", "D" ] }

[ "A: It was an atom.", "B: It was a mixture.", "C: It was an element.", "D: It was a compound." ]

{ "text": [ "grow taller so that the few remaining honey bees will find them.", "change their flowers so that wind will fertilize them.", "have always attracted many other insects as well as honey bees.", "have seeds that stay alive for a long time in the environment." ], "label": [ "A", "B", "C", "D" ] }

[ "A: grow taller so that the few remaining honey bees will find them.", "B: change their flowers so that wind will fertilize them.", "C: have always attracted many other insects as well as honey bees.", "D: have seeds that stay alive for a long time in the environment." ]

{ "text": [ "caves", "mountains", "plains", "valleys" ], "label": [ "A", "B", "C", "D" ] }

[ "A: caves", "B: mountains", "C: plains", "D: valleys" ]

{ "text": [ "atom", "cell", "element", "nucleus" ], "label": [ "A", "B", "C", "D" ] }

[ "A: atom", "B: cell", "C: element", "D: nucleus" ]

{ "text": [ "1", "27", "180", "365" ], "label": [ "A", "B", "C", "D" ] }

[ "A: 1", "B: 27", "C: 180", "D: 365" ]

{ "text": [ "bar graph", "line graph", "pie chart", "data table" ], "label": [ "A", "B", "C", "D" ] }

[ "A: bar graph", "B: line graph", "C: pie chart", "D: data table" ]

{ "text": [ "erosion of surrounding continental materials", "eruptions of continental shield volcanoes", "convergence of continental plates", "subsidence of continental landmass" ], "label": [ "A", "B", "C", "D" ] }

[ "A: erosion of surrounding continental materials", "B: eruptions of continental shield volcanoes", "C: convergence of continental plates", "D: subsidence of continental landmass" ]

{ "text": [ "A drought", "A monsoon", "A hurricane", "A thunderstorm" ], "label": [ "A", "B", "C", "D" ] }

[ "A: A drought", "B: A monsoon", "C: A hurricane", "D: A thunderstorm" ]

{ "text": [ "excretion", "locomotion", "cell division", "decomposition" ], "label": [ "1", "2", "3", "4" ] }

[ "1: excretion", "2: locomotion", "3: cell division", "4: decomposition" ]

{ "text": [ "heat energy can be transferred from one object to another", "mechanical energy can be transferred from one object to another", "sound energy can be reflected from one object to another", "light energy can be reflected from one object to another" ], "label": [ "A", "B", "C", "D" ] }

[ "A: heat energy can be transferred from one object to another", "B: mechanical energy can be transferred from one object to another", "C: sound energy can be reflected from one object to another", "D: light energy can be reflected from one object to another" ]

{ "text": [ "Animal habitats will be destroyed.", "The air will become polluted.", "Weather patterns will change.", "Underground streams will get polluted." ], "label": [ "A", "B", "C", "D" ] }

[ "A: Animal habitats will be destroyed.", "B: The air will become polluted.", "C: Weather patterns will change.", "D: Underground streams will get polluted." ]

{ "text": [ "fish in ponds", "fish in oceans", "plants in lakes", "plants in streams" ], "label": [ "A", "B", "C", "D" ] }

[ "A: fish in ponds", "B: fish in oceans", "C: plants in lakes", "D: plants in streams" ]

{ "text": [ "water", "mammals", "microorganisms", "nitrogen" ], "label": [ "A", "B", "C", "D" ] }

[ "A: water", "B: mammals", "C: microorganisms", "D: nitrogen" ]

{ "text": [ "friction", "interference", "sound waves", "ultrasonic waves" ], "label": [ "A", "B", "C", "D" ] }

[ "A: friction", "B: interference", "C: sound waves", "D: ultrasonic waves" ]

{ "text": [ "space probe.", "space shuttle.", "lunar module.", "natural satellite." ], "label": [ "A", "B", "C", "D" ] }

[ "A: space probe.", "B: space shuttle.", "C: lunar module.", "D: natural satellite." ]

{ "text": [ "crushing a rock", "burning a piece of wood", "mixing salt and pepper", "melting an ice cube" ], "label": [ "1", "2", "3", "4" ] }

[ "1: crushing a rock", "2: burning a piece of wood", "3: mixing salt and pepper", "4: melting an ice cube" ]

{ "text": [ "They inherit them from their parents.", "They live in the same habitats as their parents.", "They learn them by observing their parents.", "They eat the same foods as their parents." ], "label": [ "A", "B", "C", "D" ] }

[ "A: They inherit them from their parents.", "B: They live in the same habitats as their parents.", "C: They learn them by observing their parents.", "D: They eat the same foods as their parents." ]

{ "text": [ "conserving water", "hiding from predators", "hibernating for long periods", "producing many offspring" ], "label": [ "A", "B", "C", "D" ] }

[ "A: conserving water", "B: hiding from predators", "C: hibernating for long periods", "D: producing many offspring" ]

{ "text": [ "go through a life cycle", "form a food web", "act as a source of food", "affect other parts of the ecosystem" ], "label": [ "A", "B", "C", "D" ] }

[ "A: go through a life cycle", "B: form a food web", "C: act as a source of food", "D: affect other parts of the ecosystem" ]

{ "text": [ "rocks.", "magma.", "soil deposits.", "organic material." ], "label": [ "A", "B", "C", "D" ] }

[ "A: rocks.", "B: magma.", "C: soil deposits.", "D: organic material." ]

{ "text": [ "calcium", "magnesium", "oxygen", "silicon" ], "label": [ "A", "B", "C", "D" ] }

[ "A: calcium", "B: magnesium", "C: oxygen", "D: silicon" ]

{ "text": [ "metal fork", "rubber boot", "plastic spoon", "wooden bat" ], "label": [ "A", "B", "C", "D" ] }

[ "A: metal fork", "B: rubber boot", "C: plastic spoon", "D: wooden bat" ]

{ "text": [ "insulator", "conductor", "malleable", "porous" ], "label": [ "A", "B", "C", "D" ] }

[ "A: insulator", "B: conductor", "C: malleable", "D: porous" ]

{ "text": [ "steady winds blowing throughout the years", "gentle rain falling during each spring and fall", "lack of rain falling during a four-year drought", "water repeatedly freezing and thawing in a crack" ], "label": [ "A", "B", "C", "D" ] }

[ "A: steady winds blowing throughout the years", "B: gentle rain falling during each spring and fall", "C: lack of rain falling during a four-year drought", "D: water repeatedly freezing and thawing in a crack" ]

{ "text": [ "friction", "gravity", "inertia", "momentum" ], "label": [ "A", "B", "C", "D" ] }

[ "A: friction", "B: gravity", "C: inertia", "D: momentum" ]

{ "text": [ "meters", "degrees", "milliliters", "atmospheres" ], "label": [ "A", "B", "C", "D" ] }

[ "A: meters", "B: degrees", "C: milliliters", "D: atmospheres" ]

{ "text": [ "fronts", "tides", "hurricanes", "earthquakes" ], "label": [ "1", "2", "3", "4" ] }

[ "1: fronts", "2: tides", "3: hurricanes", "4: earthquakes" ]

{ "text": [ "It increases the mutation rate of favorable genes.", "It reduces the risk of being eaten by a predator.", "It allows absorption of chlorophyll from plants.", "It improves the chances of finding a mate." ], "label": [ "A", "B", "C", "D" ] }

[ "A: It increases the mutation rate of favorable genes.", "B: It reduces the risk of being eaten by a predator.", "C: It allows absorption of chlorophyll from plants.", "D: It improves the chances of finding a mate." ]

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

[ "A: atom.", "B: proton.", "C: neutron.", "D: electron." ]

{ "text": [ "melt", "dissolve", "become a fossil", "evaporate into vapor" ], "label": [ "A", "B", "C", "D" ] }

[ "A: melt", "B: dissolve", "C: become a fossil", "D: evaporate into vapor" ]

{ "text": [ "cells", "nuclei", "organs", "tissues" ], "label": [ "A", "B", "C", "D" ] }

[ "A: cells", "B: nuclei", "C: organs", "D: tissues" ]

{ "text": [ "this area was once below sea level.", "global temperature changed over time.", "erosion took place after a flood.", "volcanic activity affected the area." ], "label": [ "A", "B", "C", "D" ] }

[ "A: this area was once below sea level.", "B: global temperature changed over time.", "C: erosion took place after a flood.", "D: volcanic activity affected the area." ]

{ "text": [ "decrease in weight", "increase in weight", "decrease in length", "increase in length" ], "label": [ "A", "B", "C", "D" ] }

[ "A: decrease in weight", "B: increase in weight", "C: decrease in length", "D: increase in length" ]

{ "text": [ "He is growing plants in identical pots.", "He is using the same amount of water.", "He is growing one plant out of the sun.", "He is using the same amount of fertilizer." ], "label": [ "A", "B", "C", "D" ] }

[ "A: He is growing plants in identical pots.", "B: He is using the same amount of water.", "C: He is growing one plant out of the sun.", "D: He is using the same amount of fertilizer." ]

{ "text": [ "when frog eggs are laid in water", "when frog eggs hatch into tadpoles", "when tadpoles live in water and breathe with gills", "when frogs use lungs for breathing out of water" ], "label": [ "A", "B", "C", "D" ] }

[ "A: when frog eggs are laid in water", "B: when frog eggs hatch into tadpoles", "C: when tadpoles live in water and breathe with gills", "D: when frogs use lungs for breathing out of water" ]

{ "text": [ "helium", "hydrogen", "mercury", "tin" ], "label": [ "A", "B", "C", "D" ] }

[ "A: helium", "B: hydrogen", "C: mercury", "D: tin" ]

{ "text": [ "It is carried by the umbilical cord to the placenta and then to the mother's blood.", "It is released from the fetus by its breathing and then is absorbed by the placenta.", "It is released through the fetal urine and then exits through the umbilical cord.", "It is carried through shared blood vessels and then to the mother's lungs." ], "label": [ "A", "B", "C", "D" ] }

[ "A: It is carried by the umbilical cord to the placenta and then to the mother's blood.", "B: It is released from the fetus by its breathing and then is absorbed by the placenta.", "C: It is released through the fetal urine and then exits through the umbilical cord.", "D: It is carried through shared blood vessels and then to the mother's lungs." ]

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

[ "A: neutron", "B: nucleus", "C: electron", "D: proton" ]

{ "text": [ "A dog uses its tongue to drink.", "A robin holds a branch with its feet.", "A chimpanzee digs for termites with a stick.", "A worm moves to the top of flooded ground." ], "label": [ "A", "B", "C", "D" ] }

[ "A: A dog uses its tongue to drink.", "B: A robin holds a branch with its feet.", "C: A chimpanzee digs for termites with a stick.", "D: A worm moves to the top of flooded ground." ]

{ "text": [ "unicellular.", "multicellular.", "genetically varied.", "genetically identical." ], "label": [ "A", "B", "C", "D" ] }

[ "A: unicellular.", "B: multicellular.", "C: genetically varied.", "D: genetically identical." ]

{ "text": [ "Having excellent hearing", "Living six to seven years", "Dropping nuts in front of cars", "Having black feathers" ], "label": [ "A", "B", "C", "D" ] }

[ "A: Having excellent hearing", "B: Living six to seven years", "C: Dropping nuts in front of cars", "D: Having black feathers" ]

{ "text": [ "wooden ruler", "paper clip", "glass marble", "magnifying glass" ], "label": [ "A", "B", "C", "D" ] }

[ "A: wooden ruler", "B: paper clip", "C: glass marble", "D: magnifying glass" ]

{ "text": [ "less than 20%", "about 50%", "about 70%", "more than 90%" ], "label": [ "A", "B", "C", "D" ] }

[ "A: less than 20%", "B: about 50%", "C: about 70%", "D: more than 90%" ]

{ "text": [ "solid", "liquid", "gas", "vacuum" ], "label": [ "1", "2", "3", "4" ] }

[ "1: solid", "2: liquid", "3: gas", "4: vacuum" ]

{ "text": [ "rain", "wind", "minerals", "sunlight" ], "label": [ "A", "B", "C", "D" ] }

[ "A: rain", "B: wind", "C: minerals", "D: sunlight" ]

{ "text": [ "to take in air", "to produce seeds", "to absorb nutrients", "to protect the stem" ], "label": [ "A", "B", "C", "D" ] }

[ "A: to take in air", "B: to produce seeds", "C: to absorb nutrients", "D: to protect the stem" ]

{ "text": [ "bright colors", "bulging eyes", "geometric shapes", "poisonous secretions" ], "label": [ "A", "B", "C", "D" ] }

[ "A: bright colors", "B: bulging eyes", "C: geometric shapes", "D: poisonous secretions" ]

{ "text": [ "during a flood", "after a fire", "during a drought", "after a disease" ], "label": [ "A", "B", "C", "D" ] }

[ "A: during a flood", "B: after a fire", "C: during a drought", "D: after a disease" ]

{ "text": [ "atoms.", "dust.", "cells.", "bubbles." ], "label": [ "A", "B", "C", "D" ] }

[ "A: atoms.", "B: dust.", "C: cells.", "D: bubbles." ]

{ "text": [ "iron and oxygen forming rust", "paper being cut into small pieces", "chocolate melting in a pan", "flour and sugar mixed together in a bowl" ], "label": [ "A", "B", "C", "D" ] }

[ "A: iron and oxygen forming rust", "B: paper being cut into small pieces", "C: chocolate melting in a pan", "D: flour and sugar mixed together in a bowl" ]

{ "text": [ "principles", "stages", "properties", "processes" ], "label": [ "A", "B", "C", "D" ] }

[ "A: principles", "B: stages", "C: properties", "D: processes" ]

{ "text": [ "a metal fork", "a wood spoon", "a plastic comb", "a rubber eraser" ], "label": [ "A", "B", "C", "D" ] }

[ "A: a metal fork", "B: a wood spoon", "C: a plastic comb", "D: a rubber eraser" ]

{ "text": [ "Precambrian", "Paleozoic", "Mesozoic", "Cenozoic" ], "label": [ "A", "B", "C", "D" ] }

[ "A: Precambrian", "B: Paleozoic", "C: Mesozoic", "D: Cenozoic" ]

{ "text": [ "The Sun burns hotter in the summer.", "The Sun moves below the horizon in the summer.", "The Northern Hemisphere is closer to the Sun in the winter.", "The Northern Hemisphere is tilted away from the Sun in the winter." ], "label": [ "A", "B", "C", "D" ] }

[ "A: The Sun burns hotter in the summer.", "B: The Sun moves below the horizon in the summer.", "C: The Northern Hemisphere is closer to the Sun in the winter.", "D: The Northern Hemisphere is tilted away from the Sun in the winter." ]

{ "text": [ "seasonal heating and cooling of Earth's surface", "weathering of rock at Earth's surface", "Earth's gravitational attraction to the Moon", "faulting of rock in Earth's crust" ], "label": [ "1", "2", "3", "4" ] }

[ "1: seasonal heating and cooling of Earth's surface", "2: weathering of rock at Earth's surface", "3: Earth's gravitational attraction to the Moon", "4: faulting of rock in Earth's crust" ]

{ "text": [ "leave her large jacket in her locker for the day", "use goggles during the experiment", "tie her hair back away from her face", "wear a lab apron during the experiment" ], "label": [ "A", "B", "C", "D" ] }

[ "A: leave her large jacket in her locker for the day", "B: use goggles during the experiment", "C: tie her hair back away from her face", "D: wear a lab apron during the experiment" ]

{ "text": [ "strong storms", "long periods of drought", "cold air temperatures", "increasing daylight hours" ], "label": [ "A", "B", "C", "D" ] }

[ "A: strong storms", "B: long periods of drought", "C: cold air temperatures", "D: increasing daylight hours" ]

{ "text": [ "white blood cells", "brain", "red blood cells", "nerves" ], "label": [ "A", "B", "C", "D" ] }

[ "A: white blood cells", "B: brain", "C: red blood cells", "D: nerves" ]

{ "text": [ "a bear knowing the best place to catch salmon", "a cat clawing on a tree to sharpen its claws", "a dog coming when it hears a bell", "a horse trotting its way back to the barn" ], "label": [ "A", "B", "C", "D" ] }

[ "A: a bear knowing the best place to catch salmon", "B: a cat clawing on a tree to sharpen its claws", "C: a dog coming when it hears a bell", "D: a horse trotting its way back to the barn" ]

{ "text": [ "rocks, water, and soil", "water, air, and food", "air, rocks, and sunlight", "food, soil, and sunlight" ], "label": [ "A", "B", "C", "D" ] }

[ "A: rocks, water, and soil", "B: water, air, and food", "C: air, rocks, and sunlight", "D: food, soil, and sunlight" ]

{ "text": [ "the amount of dissolved minerals in the water", "the type of fibers from which her shirt was made", "the temperature of the water", "the fragrances in the detergent" ], "label": [ "A", "B", "C", "D" ] }

[ "A: the amount of dissolved minerals in the water", "B: the type of fibers from which her shirt was made", "C: the temperature of the water", "D: the fragrances in the detergent" ]

{ "text": [ "protons and electrons grouped together in a random pattern", "protons and electrons grouped together in an alternating pattern", "a core of protons and neutrons surrounded by electrons", "a core of electrons and neutrons surrounded by protons" ], "label": [ "A", "B", "C", "D" ] }

[ "A: protons and electrons grouped together in a random pattern", "B: protons and electrons grouped together in an alternating pattern", "C: a core of protons and neutrons surrounded by electrons", "D: a core of electrons and neutrons surrounded by protons" ]

{ "text": [ "energy than the first.", "inertia than the first.", "power than the first.", "work than the first." ], "label": [ "A", "B", "C", "D" ] }

[ "A: energy than the first.", "B: inertia than the first.", "C: power than the first.", "D: work than the first." ]

{ "text": [ "modified characteristic", "ecological succession", "structural adaptation", "selective breeding" ], "label": [ "A", "B", "C", "D" ] }

[ "A: modified characteristic", "B: ecological succession", "C: structural adaptation", "D: selective breeding" ]