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481 values
sciq-6332
multiple_choice
Due to the time it takes for light to reach us, galaxies at the edge of the universe are distant in terms of space and what else?
[ "time", "energy", "temperature", "gravity" ]
A
sciq-6832
multiple_choice
What is the term for decomposers that consume dead leaves, animal feces, and other organic debris collected on the ground or at the bottom of water?
[ "consumers", "recyclers", "scavengers", "detritivores" ]
D
scienceQA-3426
multiple_choice
Select the bird below.
[ "mandarinfish", "American bullfrog", "emerald hummingbird", "California toad" ]
C
An American bullfrog is an amphibian. It has moist skin and begins its life in water. Frogs live near water or in damp places. Most frogs lay their eggs in water. A mandarinfish is a fish. It lives underwater. It has fins, not limbs. Mandarinfish often live near coral reefs. They eat small worms, snails, and fish eggs. An emerald hummingbird is a bird. It has feathers, two wings, and a beak. Hummingbirds can fly backwards and upside-down! A California toad is an amphibian. It has moist skin and begins its life in water. Toads do not have teeth! They swallow their food whole.
sciq-9797
multiple_choice
What type of transport is vesicle transport considered to be?
[ "catalyst", "intercellular transport", "passive transport", "active transport" ]
D
sciq-1932
multiple_choice
What type of cells are multiple small spaces located in the right and left sides of the ethmoid bone?
[ "ethmoid vacuoles", "amniotic sacs", "alveoli", "ethmoid air cells" ]
D
sciq-7117
multiple_choice
In a cell cycle, what kind of regulator molecules allow advancement to the next stage?
[ "similar", "strong", "negative", "positive" ]
D
sciq-2808
multiple_choice
Plant-like protists produce oxygen through which process?
[ "glycolysis", "metamorphosis", "respiration", "photosynthesis" ]
D
sciq-11127
multiple_choice
What is already causing food and water shortages and species extinctions?
[ "immigration", "urbanization", "zero population growth", "global warming" ]
D
sciq-824
multiple_choice
What occurs when the presence or absence of a specific behavior prevents reproduction from taking place?
[ "behavioral isolation", "spontaneous mutation", "primary speciation", "natural selection" ]
A
sciq-1598
multiple_choice
What is the term for when a substance boils and changes to gas?
[ "boiling point", "changing point", "activation point", "reaction point" ]
A
sciq-5139
multiple_choice
What process involves two cell divisions and produces four haploid cells?
[ "mutations", "Klerokinesis", "meiosis", "Mitosis" ]
C
sciq-8685
multiple_choice
Through what method or methods of fertilization do amphibians sexually reproduce?
[ "mitosis and meiosis", "spawning or budding", "external or internal", "asexual or sexual" ]
C
sciq-8234
multiple_choice
The basal forebrain contains what that are important in learning and memory?
[ "nuclei", "ribosomes", "atoms", "oxygen" ]
A
sciq-158
multiple_choice
What celestial body is the earth’s main source of energy?
[ "rivers", "moon", "ocean", "sun" ]
D
sciq-4384
multiple_choice
Restoring nitrogen to the soil is one reason for what agricultural practice?
[ "crop rotation", "irrigation", "plowing", "sowing" ]
A
sciq-4776
multiple_choice
Omnivores are animals that eat both plant- and?
[ "biofuel", "recycled food", "animal-derived food", "liquid diets" ]
C
sciq-4964
multiple_choice
During which phase does dna replication occur in the cell cycle?
[ "resting", "mitosis", "synthesis", "gap" ]
C
sciq-4687
multiple_choice
What do people use from aquifers from springs or wells?
[ "salt", "fresh water", "oxygen", "soil" ]
B
sciq-10477
multiple_choice
Where on the earth's surface does the water cycle takes place?
[ "on, above, and below", "for , above , and below", "on , below , and below", "inside,under,above" ]
A
scienceQA-7275
multiple_choice
How long is a rowboat?
[ "3 centimeters", "3 kilometers", "3 meters", "3 millimeters" ]
C
The best estimate for the length of a rowboat is 3 meters. 3 millimeters and 3 centimeters are too short. 3 kilometers is too long.
sciq-6805
multiple_choice
Oxytocin, which stimulates the contractions of labor, is a type of what?
[ "inhibitor", "metabolite", "steroid", "hormone" ]
D
sciq-3734
multiple_choice
The end of a pine tree branch bears the male cones that produce what?
[ "the ovaries", "oxygen", "the stigmas", "the pollen" ]
D
sciq-5471
multiple_choice
What is the temperature at which a substance freezes known as?
[ "zero point", "drop point", "absolute zero", "freezing point" ]
D
ai2_arc-158
multiple_choice
Ten grams of sugar is dissolved in 100 grams (g) of water. How many grams is the sugar-and-water solution?
[ "90 g", "100 g", "110 g", "1000 g" ]
C
sciq-7416
multiple_choice
What current-carrying long coil of wire acts as a magnet?
[ "converter", "solenoid", "antenna", "igniter" ]
B
sciq-7842
multiple_choice
What do corals secrete that builds up to become a coral reef?
[ "exoskeleton", "mucous", "membrane", "scales" ]
A
sciq-1164
multiple_choice
What do animals observe in others to help solve problems?
[ "behavior", "patterns", "function", "communication" ]
A
sciq-10103
multiple_choice
What is the term for plants that lack vascular tissues, roots, leaves, seeds, and flowers?
[ "conifers", "chloroplasts", "bryophytes", "primates" ]
C
sciq-4274
multiple_choice
The galápagos islands are a group of 16 volcanic islands 600 miles off the west coast of what continent?
[ "asia", "north america", "europe", "south america" ]
D
sciq-6575
multiple_choice
What happens to the mass number during a nuclear decay process by positron emission?
[ "it decreases", "it increases", "remains unchanged", "it rises" ]
C
sciq-9537
multiple_choice
What is the primary energy source for cells?
[ "protein", "glycogen", "sucrose", "glucose" ]
D
sciq-5873
multiple_choice
Female monotremes lack a uterus and vagina. instead they have what?
[ "urethra", "endometrium", "placenta", "cloaca" ]
D
sciq-2690
multiple_choice
What form do alkali metals take at room temperature?
[ "compound", "liquid", "gas", "solid" ]
D
sciq-9093
multiple_choice
Solids can be divided into amorphous solids and which other group?
[ "acrystalline solids", "distinct solids", "morphous solids", "crystalline solids" ]
D
scienceQA-12556
multiple_choice
Select the chemical formula for this molecule.
[ "CH", "C4H", "C2H4", "CH4" ]
D
C is the symbol for carbon. According to the legend, carbon atoms are shown in dark gray. H is the symbol for hydrogen. According to the legend, hydrogen atoms are shown in light gray. This ball-and-stick model shows a molecule with one carbon atom and four hydrogen atoms. The chemical formula will contain the symbols C and H. There is one carbon atom, so C will not have a subscript. There are four hydrogen atoms, so H will have a subscript of 4. The correct formula is CH4. The diagram below shows how each part of the chemical formula matches with each part of the model above.
ai2_arc-749
multiple_choice
A meteorologist records data for a city on a certain date. The data includes temperature, cloud cover, wind speed, barometric pressure, and wind direction. Which method should the meteorologist use to record this data for a quick reference?
[ "a written description", "a table", "a station model", "a weather map" ]
B
ai2_arc-141
multiple_choice
Las Vegas has access to renewable resources for generation of electrical power, which includes hydroelectric power. Which of these energy resources is renewable and available to generate electricity in Las Vegas without degrading the environment?
[ "petroleum", "geothermal", "nuclear", "solar" ]
D
sciq-9769
multiple_choice
What is the term for the measure of the average kinetic energy of the particles in matter?
[ "precipitation", "voltage", "friction", "temperature" ]
D
sciq-5540
multiple_choice
What is the term for a push or a pull on an object?
[ "gravity", "action", "force", "effort" ]
C
sciq-1189
multiple_choice
Some compounds form rigid frameworks called what?
[ "ions", "chemicals", "crystals", "grids" ]
C
scienceQA-7569
multiple_choice
Select the mammal.
[ "Tasmanian devil", "clownfish", "gray crowned crane", "robin" ]
A
A gray crowned crane is a bird. It has feathers, two wings, and a beak. Cranes wade in shallow water to look for food. Cranes eat insects, worms, and plants. A clownfish is a fish. It lives underwater. It has fins, not limbs. Clownfish live with animals called anemones. In the image of the clownfish, you can see the brown anemone surrounding the clownfish. A Tasmanian devil is a mammal. It has fur and feeds its young milk. Tasmanian devils are meat-eating marsupials. They live on the island of Tasmania, near Australia. A robin is a bird. It has feathers, two wings, and a beak. A robin is a songbird. It sings different songs at different times of the day.
sciq-1631
multiple_choice
What is it called when plant roots absorb liquid water and release water vapor into the atmosphere?
[ "perspiration", "sedimentation", "evaporation", "transpiration" ]
D
sciq-365
multiple_choice
If force is applied further away from a pivot point, than what kind of acceleration will be greater?
[ "angular", "circular", "parameters", "rectangular" ]
A
sciq-8680
multiple_choice
Sickle cell anemia is what type of disorder?
[ "spontaneous mutation", "nongenetic disorder", "autosomal dominant disorder", "autosomal recessive disorder" ]
D
sciq-7325
multiple_choice
When atoms gain or lose electrons, they can form electrically charged particles called what?
[ "toxins", "ions", "crystals", "eons" ]
B
sciq-7635
multiple_choice
Specialized features of populations of galápagos finches inspired what theory?
[ "evolution by reaction", "evolution by force", "evolution by isolation", "evolution by natural selection" ]
D
ai2_arc-1041
multiple_choice
Which is an advantage of using renewable resources?
[ "They make energy more affordable.", "They make electricity less dangerous.", "They will be available for many years.", "They will reduce the demand for electricity." ]
C
sciq-9407
multiple_choice
What is the ratio of the uncertainty to the measured value, multiplied by one-hundred called?
[ "amount uncertainty", "percent uncertainty", "percent inconsistency", "variable uncertainty" ]
B
sciq-1998
multiple_choice
What is a random change in an organism's genes?
[ "meiosis", "mutation", "infection", "accumulation" ]
B
sciq-9216
multiple_choice
An electormagnet is a piece of iron inside a?
[ "copper core", "tunnel", "solenoid", "reactor" ]
C
sciq-5899
multiple_choice
In autosomal dominant inheritance only one "affected" what is necessary to result in an "affected" phenotype?
[ "molecule", "trait", "allele", "cells" ]
C
ai2_arc-780
multiple_choice
A perpetual motion machine is a theoretical device which, once started, continues to operate without any additional input of energy. Which statement describes why a perpetual motion machine is impossible to design?
[ "Energy can be converted into mass.", "Friction reduces the efficiency in a system.", "The amount of energy in a system remains constant.", "Potential energy can be converted into kinetic energy." ]
B
sciq-4000
multiple_choice
The process in which materials move depending on their heat relative to nearby materials is known as what?
[ "ventilation", "radiation", "convection", "induction" ]
C
sciq-649
multiple_choice
When someone falls, the kinetic energy the person has upon reaching the floor is the amount of what energy lost by falling through height?
[ "gravitational energy", "potential energy", "nuclear energy", "thermal energy" ]
B
sciq-2202
multiple_choice
What is a branded polymer that serves as energy storage in animal?
[ "triglyceride", "glycogen", "pathogen", "hydrocarbon" ]
B
sciq-5780
multiple_choice
What are the pyramid-shaped, paired organs that are connected to the trachea by the right and left bronchi?
[ "ovaries", "kidneys", "lungs", "stomachs" ]
C
sciq-2569
multiple_choice
How does a cell's membrane keep extracellular materials from mixing with it's internal components?
[ "destroys extracellular materials", "absorbs extracellular materials", "provides a barrier", "repels extracellular materials" ]
C
sciq-2220
multiple_choice
What type of behaviors do not have to be learned or practiced?
[ "protective behaviors", "innate behaviors", "diverse behaviors", "acquired behaviors" ]
B
sciq-935
multiple_choice
What influences the types of plants and animals that inhabit a specific biome?
[ "cooling", "Water", "carbon", "climate" ]
D
sciq-5755
multiple_choice
What is the“packet” of energy called that the nucleus emits during gamma decay?
[ "gamma particle", "transient particle", "ultraviolet particle", "radioactive particle" ]
A
sciq-5017
multiple_choice
Materials made from non-living substances like pebbles and sand are called what?
[ "organic", "fibrous", "microscopic", "inorganic" ]
D
sciq-335
multiple_choice
What creatures evolved from a lobe-finned lungfish ancestor?
[ "birds", "amphibians", "horses", "mice" ]
B
sciq-11239
multiple_choice
In a molecular compound, electrons are shared between atoms in which type of bond?
[ "deformation", "covalent", "corrosion", "Ionic" ]
B
sciq-6907
multiple_choice
What reproductive method has two parents involved?
[ "mitosis", "pollination", "budding", "sexually" ]
D
sciq-6465
multiple_choice
What is a gram stain used to identify ?
[ "different types of bacteria", "radioactivity", "different types of liquids", "acids or bases" ]
A
sciq-5621
multiple_choice
What is the complex network of nervous tissue that carries electrical messages throughout the body?
[ "circulatory system", "lymphatic system", "respiratory system", "nervous system" ]
D
sciq-4660
multiple_choice
What type of fronts often bring sudden changes in the weather, including different types of precipitation, depending on the season?
[ "stationary fronts", "cold fronts", "warm fronts", "occluded fronts" ]
B
sciq-141
multiple_choice
The binding of what helps eliminate antigens by phagocytosis and complement-mediated lysis
[ "antibodies", "amino acids", "fats", "proteins" ]
A
sciq-232
multiple_choice
What specific part of the african violet is used to propagate other plants?
[ "petals", "leaves", "spores", "roots" ]
B
sciq-5410
multiple_choice
What are lipids that contain phosphorus called?
[ "eukaryotes", "amino acids", "phospholipids", "alkaloids" ]
C
sciq-7971
multiple_choice
What connects the fetus to the placenta?
[ "amniotic sac", "fallopian tube", "umbilical cord", "womb" ]
C
sciq-1645
multiple_choice
What is the smallest unit of matter that still maintains it's properties of being an element?
[ "a cell", "a proton", "an atom", "an electron" ]
C
sciq-2338
multiple_choice
What is the main problem in both types of diabetes?
[ "insulin production", "blood concentration", "metabolism", "blood pressure" ]
A
scienceQA-12582
multiple_choice
What do these two changes have in common? an old sandwich rotting in a trashcan baking cookies
[ "Both are only physical changes.", "Both are chemical changes.", "Both are caused by cooling.", "Both are caused by heating." ]
B
Step 1: Think about each change. A sandwich rotting is a chemical change. The matter in the sandwich breaks down and slowly turns into a different type of matter. Baking cookies is a chemical change. The type of matter in the cookie dough changes when it is baked. The cookie dough turns into cookies! Step 2: Look at each answer choice. Both are only physical changes. Both changes are chemical changes. They are not physical changes. Both are chemical changes. Both changes are chemical changes. The type of matter before and after each change is different. Both are caused by heating. Baking is caused by heating. But a sandwich rotting is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-1169
multiple_choice
An ammeter must be connected in series with what to allow it to accurately measure the current flow without causing any disruptions?
[ "configurations", "resistors", "capacitors", "insulators" ]
B
sciq-973
multiple_choice
What encloses the border of animal cells?
[ "Jacket membrane", "plasma membrane", "dust membrane", "cells membrane" ]
B
ai2_arc-258
multiple_choice
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
[ "pry open shells.", "produce a tiny light.", "move quickly along the sea bottom.", "survive the pressurized atmosphere of deep water." ]
A
sciq-7379
multiple_choice
The cells within meristems divide relatively frequently, generating additional what?
[ "chlorophyll", "cells", "proteins", "photosynthesis" ]
B
sciq-9278
multiple_choice
What is it called when pollen from one plant fertilizes another plant of the same species?
[ "cross-typing", "cross - vegetation", "cross-pollination", "cross-breeding" ]
C
sciq-5542
multiple_choice
Which disease occurs when there is not enough hemoglobin in the blood?
[ "anemia", "Respiratory", "Pulmonary", "Diabetes" ]
A
sciq-3663
multiple_choice
What do you call mixtures of ash and water that travel down river valleys?
[ "mud slides", "debris", "lahars", "pollutants" ]
C
sciq-9220
multiple_choice
The northern spotted owl and the mexican spotted owl inhabit geographically separate locations with different climates and ecosystems. the owl is an example of?
[ "allopatric speciation", "parallel evolution", "symbiotic species", "biodiversity" ]
A
sciq-4160
multiple_choice
What is the term for the hard, round object produced within the mantle of a living shelled mollusk?
[ "root", "pearl", "ball", "glass" ]
B
sciq-7248
multiple_choice
What rigid external structure protects shellfish and other animals and provides points of attachment for the muscles that move the appendages?
[ "cocoon", "claw", "membrane", "exoskeleton" ]
D
sciq-4258
multiple_choice
What type of structure between the esophagus and the stomach normally opens only when a bolus arrives?
[ "larynx", "sphincter", "intestine", "gland" ]
B
sciq-4531
multiple_choice
The law of conservation of matter, which says that matter cannot be created or this?
[ "damaged", "abandoned", "destroyed", "stopped" ]
C
ai2_arc-1034
multiple_choice
The following are inherited traits of humans except
[ "long hair.", "blue eyes.", "long eyelashes.", "small dimples." ]
A
sciq-6956
multiple_choice
What type of planet is jupiter?
[ "a red dwarf", "a noble gas", "a phantom", "a gas giant" ]
D
sciq-4084
multiple_choice
If a mistake is made by dna polymerase while adding nucleotides, incorrect bases are removed and replaced by the correct base, and the process of what continues?
[ "digestion", "fermentation", "polymerization", "hybridization" ]
C
sciq-4838
multiple_choice
In what unit is heat measured in?
[ "velocities", "thermals", "joules", "amperes" ]
C
sciq-611
multiple_choice
What type of matter transmits light without scattering it?
[ "clean", "translucent", "transparent", "bioluminescent" ]
C
sciq-7659
multiple_choice
Because heterotrophs cannot make their own food, what are they called?
[ "destroyers", "customers", "consumers", "products" ]
C
sciq-634
multiple_choice
During karyogamy, the haploid nuclei contributed by the two parents fuse, which produces what?
[ "mutated cells", "diploid cells", "arisen cells", "cancer cells" ]
B
sciq-11399
multiple_choice
Fungi reproduce asexually by fragmentation and either sexually or asexually via what lightweight, windblown structures?
[ "lesions", "seeds", "spores", "ions" ]
C
sciq-10011
multiple_choice
During summer in the northern hemisphere, the north pole is tilted toward what?
[ "sun", "horizon", "moon", "the north star" ]
A
sciq-9688
multiple_choice
In what group of animals several forms of asexual reproduction are found?
[ "arthropods", "crustaceans", "insects", "invertebrates" ]
D
sciq-2777
multiple_choice
In the human body, what do you call the intersection where the paths for air and food cross.?
[ "larynx", "pharynx", "esophagus", "cloaca" ]
B
scienceQA-2882
multiple_choice
What do these two changes have in common? molding clay into the shape of a pot shaking up salad dressing
[ "Both are caused by cooling.", "Both are chemical changes.", "Both are only physical changes.", "Both are caused by heating." ]
C
Step 1: Think about each change. Molding clay into the shape of a pot is a physical change. The clay gets a different shape. But it is made of the same type of matter. Shaking up salad dressing is a physical change. The different parts mix together, but they are still made of the same type of matter. Step 2: Look at each answer choice. Both are only physical changes. Both changes are physical changes. No new matter is created. Both are chemical changes. Both changes are physical changes. They are not chemical changes. Both are caused by heating. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-2557
multiple_choice
A statement that describes what always happens under certain conditions in nature is also known as what?
[ "scientific law", "theory", "hypothesis", "scientific motion" ]
A
ai2_arc-138
multiple_choice
A student is asked to make soil using the following substances: water, ore, humus, crystal, weathered rock, and metamorphic rock. Which combination of these substances should the student choose?
[ "humus, crystal, and ore", "water, weathered rock, and humus", "water, metamorphic rock, and crystal", "metamorphic rock, ore, and weathered rock" ]
B