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481 values
sciq-5647
multiple_choice
The four major classes of biological macromolecules include carbohydrates, lipids, proteins, and what else?
[ "nucleic acids", "liquids", "structural acids", "fats" ]
A
sciq-4590
multiple_choice
Where was the distinction between total distance traveled and displacement first noted?
[ "string theory", "uncertainty principle", "one-dimensional kinematics", "Newton's first law" ]
C
ai2_arc-739
multiple_choice
Scientists group animals based on physical features. Trout are classified as fish because of what physical feature?
[ "Fish have gills.", "Fish eat the same food.", "Fish live in the same area.", "Fish have the same predators." ]
A
ai2_arc-613
multiple_choice
A student plans to design a new toothpaste tube that will give the same amount of toothpaste every time it is squeezed. Which should the student do first when designing the new tube?
[ "make a data table of amounts of toothpaste", "gather building materials", "create models of old toothpaste tubes", "draw a few possible solutions" ]
D
sciq-7227
multiple_choice
The van allen radiation belts are two regions in which energetic charged particles are trapped in earth’s what?
[ "gravitational field", "cloud cover", "magnetic field", "ionosphere" ]
C
sciq-11141
multiple_choice
What must be present on a plant where ladybugs will lay their eggs?
[ "aphids", "dew drops", "butterflies", "mites" ]
A
sciq-10109
multiple_choice
Did the the open circulatory systems of molluscs and arthropods arise dependently or independently of each other?
[ "dependently", "together", "separately", "independently" ]
D
sciq-7510
multiple_choice
The direction of prevailing winds determines the type of what that usually moves over an area?
[ "weather", "air mass", "storm", "water mass" ]
B
sciq-11395
multiple_choice
A pedigree is a chart which shows the inheritance of a trait over several what?
[ "events", "centuries", "organisms", "generations" ]
D
sciq-71
multiple_choice
Dessication is an extreme and usually fatal form of what in animals?
[ "depletion", "dehydration", "diarrhea", "starvation" ]
B
sciq-6845
multiple_choice
What helps screen libraries for a gene of interest using nucleic acid hybridization?
[ "proteins acid probe", "mitochondrial acid probe", "nucleic acid probe", "cellular acid probe" ]
C
sciq-4290
multiple_choice
What keeps various species from mating and reproducing outside their own species?
[ "brain organ incompatibility", "digestive system incompatibility", "reproductive organ incompatibility", "cancer organ incompatibility" ]
C
sciq-709
multiple_choice
What is the branch of science that studies the physical world?
[ "botany", "social science", "physics", "Ecology" ]
C
sciq-2994
multiple_choice
Which of these is last if ordered in increasing size: galaxy, solar system, star cluster?
[ "star cluster", "galaxy", "none of these", "solar system" ]
B
sciq-5271
multiple_choice
What property is a measure of the average kinetic energy of molecules?
[ "density", "mass", "temperature", "velocity" ]
C
ai2_arc-682
multiple_choice
The water cycle describes the movement of the water of Earth. About 96% of the water of Earth is the salt water found in the oceans while the remaining 4% is fresh water. Where would the majority of the freshwater on Earth be found?
[ "groundwater and aquifers", "swamps and wetlands", "ice caps and glaciers", "lakes and rivers" ]
C
sciq-744
multiple_choice
What is the process where scientific articles are checked and analyzed by other scientists before publication?
[ "peer review", "mechanism review", "process review", "embrace review" ]
A
sciq-8638
multiple_choice
In what state do ionic compounds best conduct electricity?
[ "plasma", "gas", "solid", "liquid" ]
D
sciq-6236
multiple_choice
Has the average annual temperature on earth been rising or falling for the past 100 years?
[ "unchanged", "falling", "fluctuating", "rising" ]
D
sciq-11104
multiple_choice
What effect describes how earth’s rotation steers winds and surface ocean currents?
[ "centripetal force", "coriolis", "Big Bang theory", "dorsalis" ]
B
sciq-8955
multiple_choice
Is urea or salt reabsorbed faster?
[ "same speed", "neither is reabsorbed", "urea", "salt" ]
D
sciq-4164
multiple_choice
What group includes the simplest eukaryotes, including most single-celled eukaryotes?
[ "arthropods", "protists", "fungi", "bivalves" ]
B
scienceQA-1576
multiple_choice
Select the plant.
[ "Moles eat insects and worms.", "Snowy owls eat small animals.", "Almond trees can grow many small flowers.", "Manatees swim underwater." ]
C
An almond tree is a plant. It can grow many small flowers. Almonds were first grown by people living near the Mediterranean Sea. A snowy owl is an animal. It eats small animals. Snowy owls live in cold places. Snowy owls have feathers on their feet to protect them from the cold. A mole is an animal. It eats insects and worms. Moles live mostly underground. A manatee is an animal. It swims underwater. Manatees eat plants that live underwater.
sciq-2433
multiple_choice
Invertebrates make up what percentage of all animal species?
[ "30 percent", "90 percent", "50 percent", "95 percent" ]
D
scienceQA-5020
multiple_choice
Which of the following organisms is the primary consumer in this food web?
[ "bolete fungus", "silver maple", "swallowtail caterpillar", "black racer" ]
C
Primary consumers eat producers. So, in a food web, primary consumers have arrows pointing to them from producers. The bolete fungus has arrows pointing to it from the black racer, the gray fox, and the bobcat. None of these organisms is a producer, so the bolete fungus is not a primary consumer. The black racer has an arrow pointing to it from the pine vole. The pine vole is not a producer, so the black racer is not a primary consumer. The swallowtail caterpillar has an arrow pointing to it from the persimmon tree. The persimmon tree is a producer, so the swallowtail caterpillar is a primary consumer. The silver maple does not have any arrows pointing to it. So, the silver maple is not a primary consumer. The black bear has an arrow pointing to it from the persimmon tree. The persimmon tree is a producer, so the black bear is a primary consumer.
sciq-2151
multiple_choice
Endothermic and exothermic reactions differ in whether the products or reactants store more of what?
[ "Thermal energy", "chemical energy", "Kinetic Energy", "Motion energy" ]
B
scienceQA-11722
multiple_choice
Select the liquid.
[ "hair clip", "arrowhead", "screwdriver", "rain puddle" ]
D
A hair clip is a solid. A solid has a size and shape of its own. You can use a hair clip to keep your hair out of your face because the hair clip keeps its shape. An arrowhead is a solid. A solid has a size and shape of its own. An arrowhead is made of rock. A screwdriver is a solid. A solid has a size and shape of its own. This screwdriver has a metal blade and a plastic handle. Both metal and plastic are solids. A rain puddle is a liquid. A liquid takes the shape of any container it is in. If you collect rainwater in a bucket, the rainwater will take the shape of the bucket. But the rainwater will still take up the same amount of space.
sciq-2587
multiple_choice
What two planets is the asteroid belt found between?
[ "mars and jupiter", "Jupiter and Earth", "Jupiter and Saturn", "Mars and Earth" ]
A
sciq-4559
multiple_choice
What type of stress causes horizontal motions in strike-slip faults?
[ "hot", "shear", "cold", "blunt" ]
B
sciq-9275
multiple_choice
Roundworms are intervertebrates that belong to which phylum?
[ "annelida", "nematoda", "Gordiacea", "amoebozoa" ]
B
sciq-8366
multiple_choice
What is the smallest unit of structure and function of all living organisms?
[ "organelle", "the cell", "chromosome", "organ" ]
B
sciq-2868
multiple_choice
The bottom of the ocean is called what?
[ "Final zone", "Intertidal zone", "Demersal zone", "the benthic zone" ]
D
ai2_arc-419
multiple_choice
A star is a celestial object that produces its own heat and light. Which of these celestial objects is the closest star to Earth?
[ "Mars", "Venus", "the sun", "the moon" ]
C
sciq-7952
multiple_choice
Someone who believes something despite the evidence is referred to by what term that references a false belief about our planet?
[ "flat-earther", "solid - earther", "conspiracy theorist", "geocentric-earther" ]
A
sciq-2532
multiple_choice
The distance between the crests of electromagnetic waves is called what?
[ "variation", "trough", "crest", "wavelength" ]
D
sciq-7884
multiple_choice
What cycle completes the breakdown of glucose begun in glycolysis?
[ "krebs", "vireos", "bacterium", "priebus" ]
A
sciq-9290
multiple_choice
Activated macrophages and neutrophils discharge what that signals molecules that enhance an immune response?
[ "nucelotides", "cytokines", "alkaloids", "pathogens" ]
B
sciq-7407
multiple_choice
What system is the brain the control center of?
[ "circulatory", "nervous", "fibrous", "adrenal" ]
B
sciq-858
multiple_choice
What occurs when a substance diffuses through a cell membrane without any help from other molecules?
[ "simple diffusion", "visible diffusion", "visual diffusion", "simple filtration" ]
A
ai2_arc-390
multiple_choice
A student has a pink eraser on her desk. Which property shows that the eraser is a solid?
[ "Its color stays the same when it is broken in half.", "Its temperature goes up when it is rubbed on paper.", "Its shape is definite when it is placed in a new spot.", "Its size changes when it is used to remove pencil marks." ]
C
ai2_arc-684
multiple_choice
Which energy resource is non-renewable?
[ "oil", "solar", "water", "wind" ]
A
sciq-3869
multiple_choice
What is the midpiece of sperm packed with?
[ "glucose", "mitochondria", "protein", "urine" ]
B
sciq-512
multiple_choice
Some 96% of the dry mass consists of organic compounds produced by what?
[ "electrolysis", "photosynthesis", "erosion", "reproduction" ]
B
sciq-6971
multiple_choice
What is made up of nerve cells that sense stimuli and transmit signals?
[ "dependent tissue", "muscle tissues", "blood tissue", "nervous tissue" ]
D
sciq-2028
multiple_choice
Starch is a large, complex carbohydrate made of thousands of _____ joined together?
[ "glucose orders ( monomers )", "glucose units (monomers)", "glucose divisions ( monomers )", "glucose partitions ( monomers )" ]
B
sciq-1567
multiple_choice
The acidity of a solution is typically assessed experimentally by measurement of its what?
[ "density", "mass", "color", "ph" ]
D
sciq-11602
multiple_choice
What is the process of drawing general conclusions based on many pieces of evidence?
[ "quantum reasoning", "experimental reasoning", "primitive reasoning", "inductive reasoning" ]
D
sciq-4119
multiple_choice
What is the name of the body system that fights to protect the body from specific pathogens?
[ "infectious system", "immune system", "allergic response", "warning system" ]
B
sciq-8951
multiple_choice
What is the molecular formula of carbon dioxide?
[ "c2o", "h2o", "co 2", "cl2" ]
C
sciq-9392
multiple_choice
In which area does conduction mainly happen?
[ "thermosphere", "higher atmosphere", "lower atmosphere", "mesosphere" ]
C
sciq-11046
multiple_choice
Fission is a method of what type of reproduction exhibited by some planarians?
[ "sexual", "spawning", "propagation", "asexual" ]
D
ai2_arc-973
multiple_choice
A class is modeling the differences between a unicellular organism and a multicellular organism. Which example is a model of a unicellular organism?
[ "a student passing out water to a group", "a student getting cereal from the cabinet", "two students collecting trash from a group", "four students working together to move a desk" ]
B
sciq-3274
multiple_choice
Carbohydrates are an important group of biological molecules that includes sugars and these?
[ "proteins", "starches", "fats", "vitamins" ]
B
sciq-8241
multiple_choice
The ovules, which are the female gametophytes, are held in what organ?
[ "abdomen", "testes", "ovary", "uterus" ]
C
scienceQA-8531
multiple_choice
Select the invertebrate.
[ "castor bean tick", "zebra dove", "Solomon leaf frog", "harvest mouse" ]
A
A zebra dove is a bird. Like other birds, a zebra dove is a vertebrate. It has a backbone. A harvest mouse is a mammal. Like other mammals, a harvest mouse is a vertebrate. It has a backbone. A Solomon leaf frog is an amphibian. Like other amphibians, a Solomon leaf frog is a vertebrate. It has a backbone. A castor bean tick is an insect. Like other insects, a castor bean tick is an invertebrate. It does not have a backbone. It has an exoskeleton.
sciq-4740
multiple_choice
What do you call the pattern of lines formed when light passes through a prism to separate it into the different frequencies of light it contains?
[ "kaleidoscope effect", "prismatic rainbow", "atomic emission spectrum", "light emission spectrum" ]
C
sciq-5322
multiple_choice
What phenomenon has severe consequences on both natural and man-made objects, including killing trees and degrading marble statues?
[ "carbon rain", "oxygen rain", "natural rain", "acid rain" ]
D
sciq-2088
multiple_choice
What is the scientific term for the amount of light reflected by a surface?
[ "reactivity", "inversion", "prism", "albedo" ]
D
sciq-2548
multiple_choice
What kind of change occurs whenever matter changes into an entirely different substance with different chemical properties?
[ "reversible change", "carbon change", "chemical change", "physical change" ]
C
sciq-4326
multiple_choice
What do we call the lowest layer of the atmosphere?
[ "troposphere", "stratosphere", "mesosphere", "asthenosphere" ]
A
sciq-7273
multiple_choice
What element has an atomic number of 6?
[ "hydrogen", "carbon", "silicon", "oxygen" ]
B
sciq-10164
multiple_choice
What type of plants grow on other plants?
[ "parasites", "epiphytes", "bryophytes", "legumes" ]
B
sciq-6117
multiple_choice
What weather events move with the prevailing winds and originate in the trade winds in the northern hemisphere?
[ "droughts", "hurricanes", "earthquakes", "tsunamis" ]
B
sciq-11249
multiple_choice
Reducing waste, as well as reusing and recycling resources, can help save what?
[ "natural resources", "artificial resources", "eletrical resources", "coral resources" ]
A
sciq-2701
multiple_choice
The first period of the paleozoic era was called what?
[ "permian", "ordovician", "carboniferous", "cambrian" ]
D
sciq-3400
multiple_choice
Billions of what inside the human digestive tract help us digest food, make vitamins and play other important roles?
[ "viruses", "bacteria", "red blood cells", "neurons" ]
B
sciq-4782
multiple_choice
What is the scientific term for the dropping of leaves, fruits, and flowers, which led to the naming of an acid thought to play a role in the process?
[ "affixation", "ablation", "abscission", "ascorbition" ]
C
sciq-2227
multiple_choice
What layer high in the atmosphere protects living things from most of the sun’s harmful uv rays?
[ "troposphere", "Mesosphere", "stratosphere", "ozone layer" ]
D
sciq-4577
multiple_choice
What usually causes fractures on a bone?
[ "extra weight", "shear stress", "compressive stress", "excessive bending stress" ]
D
sciq-9612
multiple_choice
Instead of wood, what do some fireplaces use?
[ "gasoline", "acetylene", "propane", "kerosene" ]
C
sciq-4969
multiple_choice
If a gyroscope is not spinning, it acquires angular momentum in the direction of what?
[ "velocity", "torque", "acceleration", "gravity" ]
B
sciq-7410
multiple_choice
The negatively charged electrons are attracted to the positively charged what?
[ "axon", "ion", "atom", "nucleus" ]
D
sciq-11481
multiple_choice
What type of mass movement is a sudden movement of large blocks of rock and soil down a slope?
[ "slump", "resurgence", "deluge", "downturn" ]
A
sciq-53
multiple_choice
The ability for a plasma membrane to only allow certain molecules in or out of the cell is referred to as what?
[ "periodic permeability", "moderate permeability", "selective permeability", "total permeability" ]
C
sciq-6442
multiple_choice
What process moves food through the esophagus no matter which position the body is in?
[ "proteolysis", "homeostasis", "mastication", "peristalsis" ]
D
sciq-6019
multiple_choice
The composition of the magma determines if the rock is mafic, felsic, or what?
[ "intermediate", "variable", "magnetic", "porous" ]
A
sciq-2223
multiple_choice
What stages in the life of a cell does the cell cycle include?
[ "adult stages", "intermediate stages", "both", "all" ]
D
sciq-1861
multiple_choice
The eyes of all vertebrates possess a single one of these structures?
[ "sty", "stalk", "lens", "vessel" ]
C
sciq-9940
multiple_choice
What is the smallest particle of an element that still has the element’s properties?
[ "an atom", "a nucleus", "an ion", "an electron" ]
A
sciq-10620
multiple_choice
Electric generators convert what type of energy to electric energy?
[ "fluid energy", "electromagnetic energy", "mechanical energy", "thermodynamic energy" ]
C
sciq-3237
multiple_choice
Soil erosion is a natural process, but what can increase it unnaturally?
[ "animal activies", "volcanic eruption", "human activities", "human preservation" ]
C
sciq-4183
multiple_choice
The airway and the lungs are part of what organ system?
[ "pulmonary", "coronary", "digestive", "respiratory" ]
D
scienceQA-4762
multiple_choice
How long is an ice skate?
[ "10 feet", "10 yards", "10 inches", "10 miles" ]
C
The best estimate for the length of an ice skate is 10 inches. 10 feet, 10 yards, and 10 miles are all too long.
sciq-11097
multiple_choice
Water follows where sodium ions lead, due to what process?
[ "hydration", "osmosis", "electrolysis", "absorption" ]
B
sciq-9450
multiple_choice
Biodiversity hot spots are prime candidates for protection because they are prone to what species fate?
[ "extinction", "mutation", "accumulation", "reduction" ]
A
ai2_arc-799
multiple_choice
As humans travel in space, which gas is provided in the atmosphere of the spacecraft and which gas is removed from the atmosphere of the spacecraft?
[ "Oxygen is provided. Carbon dioxide is removed.", "Carbon dioxide is provided. Oxygen is removed.", "Carbon dioxide is provided. Nitrogen is removed.", "Oxygen is provided. Nitrogen is removed." ]
A
sciq-10335
multiple_choice
How does the epidermis renew its layer?
[ "shedding dead cells", "exfoliating scrub", "loofah", "scabbing" ]
A
sciq-9123
multiple_choice
Producers, primary consumers, higher-level consumers, and decomposers are levels in what?
[ "food flowchart", "energy chain", "food model", "food chain" ]
D
sciq-11314
multiple_choice
What is the science of how traits are passed from parents to offspring?
[ "genetics", "heredity", "alleles", "cross matching" ]
B
sciq-2226
multiple_choice
Mutations cannot be passed on to offspring if they occur in what type of cells?
[ "body cells", "put cells", "kept cells", "blood cells" ]
A
sciq-5610
multiple_choice
Carbonic anhydrase plays what role to achieve a variety of results involving different organs?
[ "blocker", "enzyme", "sequence", "inhibition" ]
B
sciq-9658
multiple_choice
What material is transported in a process called longshore drift?
[ "sediment", "boats", "foods", "grass" ]
A
sciq-8689
multiple_choice
The third line of defense of the immune system is called?
[ "the malignant response", "the asymptomatic response", "the sudden response", "the immune response" ]
D
ai2_arc-639
multiple_choice
How are green plants an important part of the carbon dioxide-oxygen cycle?
[ "They add oxygen to the soil.", "They release oxygen into the air.", "They fix carbon dioxide in the soil.", "They store carbon dioxide in roots." ]
B
sciq-9065
multiple_choice
Bees are naturalized on every continent except which?
[ "North America", "antarctica", "Africa", "Australia" ]
B
sciq-7847
multiple_choice
What happened to chemical reactions when temperature increases?
[ "it becomes slower", "it became faster", "it slows down for a short time then speeds up", "it stays the same" ]
B
sciq-4203
multiple_choice
Who is called the father of genetics?
[ "Vincent van Gogh", "Nostradamus", "raphael", "mendel" ]
D
sciq-4437
multiple_choice
The substances that comprise heterogeneous mixtures can also be separated by what means?
[ "physical", "chemical", "thermal", "atmospheric" ]
A
sciq-442
multiple_choice
What happens to energy when an atom gains an electron?
[ "it is folded", "it is released", "it increases", "it is used" ]
B
sciq-3686
multiple_choice
Why are two different minerals considered different though they have the same chemical composition?
[ "different crystal structures", "different rods structures", "different linear structures", "different molecular structures" ]
A