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question
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481 values
ai2_arc-405
multiple_choice
Which of the following Earth layers has the greatest density?
[ "crust", "mantle", "inner core", "outer core" ]
C
sciq-9548
multiple_choice
The burning of charcoal is what type of reaction?
[ "physical", "evaporation", "condensation", "combustion" ]
D
sciq-3224
multiple_choice
What is the common abbreviation for noting the rhesus blood type?
[ "RNA", "AB", "h2", "rh" ]
D
sciq-6102
multiple_choice
Human beings depend on learned behaviors more than any other?
[ "mammals", "Organisms", "Beings", "species" ]
D
sciq-392
multiple_choice
What are two of the most common vision problems?
[ "myopia and nearsightedness", "blindness and astigmatism", "cross-eye and blindness", "nearsightedness and farsightedness" ]
D
sciq-7888
multiple_choice
What are the smallest type of blood vessels?
[ "viens", "neurons", "capillaries", "arteries" ]
C
sciq-6219
multiple_choice
In what stage of photosynthesis does the calvin cycle occur?
[ "first", "second", "third", "fourth" ]
B
sciq-7664
multiple_choice
What has the burning of fossil fuels increased in the atmosphere?
[ "oxygen", "temperature", "ozone", "carbon dioxide" ]
D
sciq-4530
multiple_choice
What does the triploid cell develop into during fertilization?
[ "zygote", "tubers", "membrane", "endosperm" ]
D
sciq-484
multiple_choice
The coccyx, or tailbone, results from the fusion of four small what?
[ "rib vertebrae", "arsine vertebrae", "coccygeal vertebrae", "alangulam vertebrae" ]
C
sciq-7639
multiple_choice
Lava erupts through long cracks in the ground, also called what?
[ "ridges", "fissures", "faults", "crevasses" ]
B
sciq-3893
multiple_choice
What makes sunsets appear red?
[ "floral scattering", "wavelength scattering", "reflection scattering", "rayleigh scattering" ]
D
sciq-2015
multiple_choice
Which type of glaciers form in high mountains and travel through valleys?
[ "rocky glaciers", "seaside glaciers", "altitude glaciers", "alpine glaciers" ]
D
sciq-6512
multiple_choice
What body system consists of organs that break down food, absorb nutrients, and eliminate waste?
[ "hormonal system", "lymphatic system", "skeletal system", "digestive system" ]
D
sciq-11336
multiple_choice
What is the name for compounds that contain only carbon and hydrogen?
[ "carbides", "hydrocarbons", "carbohydrates", "particles" ]
B
sciq-10467
multiple_choice
What is another term for foodborne illness?
[ "cancer", "food poisoning", "disease", "pathogen" ]
B
sciq-11103
multiple_choice
Integral and peripheral proteins are associated with what fatty bilayer?
[ "protein", "cartilage", "lipid", "carbohydrate" ]
C
sciq-5783
multiple_choice
Particulates cause lung diseases. they can also increase the risk of heart disease and the number of what?
[ "cancer", "shortness of breath", "coughing", "asthma attacks" ]
D
sciq-6618
multiple_choice
Which factor has a big impact on coastal climates?
[ "large ocean currents", "ocean waves", "tide", "tsunami" ]
A
sciq-6439
multiple_choice
Plasmodesmata and gap junctions are channels between adjacent cells of what respective types?
[ "plant and fungus", "plant and animal", "new and old", "healthy and sick" ]
B
sciq-10437
multiple_choice
What kind of beneficial relationships with other organisms are common in the plant kingdom?
[ "Host", "mutualistic", "autotrophic", "symbiotic" ]
B
sciq-8029
multiple_choice
The production of light by living things is called what?
[ "apoptosis", "bio-glow", "attenuation", "bioluminescence" ]
D
sciq-8718
multiple_choice
The two members of a given pair of chromosomes are called what?
[ "tissue chromosomes", "divergant chromosomes", "homologous chromosomes", "isolated chromosomes" ]
C
sciq-2842
multiple_choice
Coral and the algae living inside of them have what type of relationship, since the algae relies on the coral to stay close to the water's surface?
[ "peculiar", "competitive", "parasitic", "symbiotic" ]
D
sciq-3457
multiple_choice
Halides of the transition metals become more covalent with increasing oxidation state and are more prone to what?
[ "cycloaddition", "decarbonylation", "comproportionation", "hydrolysis" ]
D
sciq-6587
multiple_choice
When is the rate of the forward reaction equal to the rate of the reverse reaction?
[ "before equilibrium", "after equilibrium", "at conduction", "at equilibrium" ]
D
ai2_arc-1038
multiple_choice
How much time is required for a bicycle to travel a distance of 100 m at an average speed of 2 m/s?
[ "0.0", "s B 50 s", "100 s", "200 s" ]
B
sciq-5323
multiple_choice
What alloy is made from copper and zinc?
[ "manganate", "brass", "stele", "iron" ]
B
sciq-1800
multiple_choice
The major cause of outdoor air pollution is the burning of?
[ "trash", "trees", "fossil fuels", "charcoal briquettes" ]
C
sciq-8851
multiple_choice
Will contour lines ever cross?
[ "no", "in rare cases", "yes", "always" ]
A
sciq-4917
multiple_choice
In a science lab, what device would you use to measure the volume of a liquid?
[ "graduated cylinder", "anemometer", "Richter scale", "yardstick" ]
A
sciq-4434
multiple_choice
Medical problems associated with the body responding poorly to insulin are commonly associated with what disease?
[ "AIDS", "colitis", "pertussis", "diabetes" ]
D
sciq-305
multiple_choice
A nerve cell that carries messages is called a?
[ "neuron", "mitochondria", "platelet", "stem cell" ]
A
sciq-10985
multiple_choice
The wrist and base of the hand are formed by what series of small bones arranged in distal and proximal rows?
[ "patella", "ribs", "cranial", "carpal" ]
D
sciq-2155
multiple_choice
What sequence is the primary structure of a protein?
[ "amino acid sequence", "proteins acid sequence", "nucleic acid sequence", "processed acid sequence" ]
A
sciq-6788
multiple_choice
Although it is not vital to humans, calcitonin is important for calcium homeostasis in adults of some species in what group characterized by backbones?
[ "vertebrates", "invertebrates", "reptiles", "mammals" ]
A
sciq-7679
multiple_choice
The pituitary gland is associated with what bodily system?
[ "cardiovascular", "digestive", "endocrine", "nervous" ]
C
ai2_arc-646
multiple_choice
One property of liquids is that they have a definite
[ "flexibility", "temperature", "volume", "shape" ]
C
sciq-11564
multiple_choice
What chemical element helps forms strong bones and teeth in humans?
[ "magnesium", "potassium", "calcium", "iron" ]
C
ai2_arc-17
multiple_choice
One evening as it is getting dark, Alex sits on the front porch and watches the sun slowly disappear behind the neighbor's house across the street. Which explains this observation?
[ "The sun's light is reflected by the clouds.", "The sun's light is refracted by the atmosphere.", "The sun moves from west to east each day.", "The sun appears to move due to Earth's rotation." ]
D
ai2_arc-1117
multiple_choice
Screech owls have two color variations-red and grey. What advantage does the grey screech owl have over the red screech owl in a habitat that is made up of trees with dark-colored bark?
[ "nesting", "feeding", "reproduction", "camouflage" ]
D
sciq-4005
multiple_choice
What do most ecosystems get energy from?
[ "magma", "moisture", "sunlight", "evaporation" ]
C
sciq-5325
multiple_choice
What are terrestrial biomes determined by?
[ "moisture and elevation", "temperature and moisture", "time and temperature", "pressure and temperature" ]
B
sciq-6486
multiple_choice
What class of acids do carboxylic acids fall under?
[ "hydrochloric acids", "organic acids", "carbolic acids", "inorganic acids" ]
B
sciq-7142
multiple_choice
Which gas moves from the blood in the capillaries into the air?
[ "oxygen", "carbon dioxide", "nitrogen", "carbon monoxide" ]
B
sciq-11478
multiple_choice
What term is used to describe the average weather of a place over many years?
[ "climate", "atmosphere", "meteorology", "landscape" ]
A
sciq-10778
multiple_choice
The kayak’s motion in the water is an example of classical addition of what?
[ "momentum", "acceleration", "velocities", "force" ]
C
sciq-10574
multiple_choice
What element, which often forms polymers, has a unique ability to form covalent bonds with many other atoms?
[ "carbon", "hydrogen", "oxygen", "iron" ]
A
sciq-3533
multiple_choice
Plants obtain their energy from the sun through photosynthesis , what do animals obtain their energy from?
[ "ultraviolet rays", "tissues", "proteins", "organisms" ]
D
sciq-7675
multiple_choice
What is first year after birth is called?
[ "adolescence", "neonatal stage", "infancy", "primary stage" ]
C
sciq-5450
multiple_choice
Which common oxidizing agent can be used to oxidize alcohols?
[ "potassium chloride", "potassium dichromate", "hydrogen dichromate", "hydrogen chloride" ]
B
sciq-212
multiple_choice
What are the most common seedless vascular plants?
[ "grasses", "trees", "weeds", "ferns" ]
D
sciq-5225
multiple_choice
What is the only thing that can change an asteroid?
[ "a wind", "a collision", "weather", "a situation" ]
B
scienceQA-315
multiple_choice
Which of the following organisms is the secondary consumer in this food web?
[ "zooplankton", "phytoplankton", "kelp", "plainfin midshipman" ]
D
Secondary consumers eat primary consumers, and primary consumers eat producers. So, in a food web, secondary consumers have arrows pointing to them from primary consumers. Primary consumers have arrows pointing to them from producers. The zooplankton has an arrow pointing to it from the phytoplankton. The phytoplankton is not a primary consumer. So, the zooplankton is not a secondary consumer. The kelp does not have any arrows pointing to it. So, the kelp is not a secondary consumer. The kelp bass has arrows pointing to it from the zooplankton and the plainfin midshipman. The zooplankton and the plainfin midshipman are primary consumers, so the kelp bass is a secondary consumer. The phytoplankton does not have any arrows pointing to it. So, the phytoplankton is not a secondary consumer. The plainfin midshipman has an arrow pointing to it from the zooplankton. The zooplankton is a primary consumer, so the plainfin midshipman is a secondary consumer.
sciq-2452
multiple_choice
What are the largest known proteins?
[ "keratins", "titins", "actins", "hormones" ]
B
sciq-184
multiple_choice
What is a measure of the average amount of energy of motion, or kinetic energy, a system contains called?
[ "size", "precipitation", "variation", "temperature" ]
D
sciq-908
multiple_choice
During asexual reproduction, fungi produce haploid spores by what process involving a haploid parent cell?
[ "divergence", "mitosis", "osmosis", "evaporation" ]
B
sciq-1669
multiple_choice
Some consumers such as the mushroom get their energy from what?
[ "minerals", "solar energy", "dead organic matter", "inorganic matter" ]
C
sciq-2895
multiple_choice
When a glacier no longer moves, what is it called?
[ "an iceberg", "an ice sheet", "an ice cylinder", "a glacial lake" ]
B
sciq-3477
multiple_choice
How do oceans help control global warming?
[ "reflecting light", "releasing oxygen", "absorbing carbon dioxide", "Cooling air" ]
C
sciq-4755
multiple_choice
Which two gases make up the bulk of earth's atmosphere?
[ "nitrogen and oxygen", "phosphorus and oxygen", "nitrogen and argon", "carbon and oxygen" ]
A
sciq-5312
multiple_choice
What novelties can also arise when structures that originally played one role gradually acquire a different one?
[ "mutation", "evolutionary", "reproduction", "interactions" ]
B
sciq-1175
multiple_choice
Worms use a hydrostatic type of what anatomical structure to move through their environment?
[ "skeleton", "tail", "head", "gastrointestinal system" ]
A
sciq-2814
multiple_choice
What consists of four major components: inorganic mineral matter, organic matter, water and air, and living matter?
[ "nitrogen", "color", "rocks", "soil" ]
D
scienceQA-4711
multiple_choice
What do these two changes have in common? cracking open a peanut stretching a rubber band
[ "Both are chemical changes.", "Both are caused by heating.", "Both are caused by cooling.", "Both are only physical changes." ]
D
Step 1: Think about each change. Cracking open a peanut is a physical change. The peanut shell breaks and the peanut falls out. Both are still made of the same type of matter. Stretching a rubber band is a physical change. The rubber band gets longer. But it is still made of the same type of matter as before. 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-6369
multiple_choice
When are nutrients absorbed into the body?
[ "before digestion", "during digestion", "after excretion", "after digestion" ]
B
sciq-2418
multiple_choice
What is the term for something that limits the growth or development of an organism, population, or process?
[ "controlling factor", "limiting factor", "stumbling block", "variable" ]
B
sciq-4655
multiple_choice
When iron and sulfur are mixed together in a certain ratio and heated, what do they become?
[ "sulfuric acid", "rust", "iron oxide", "iron sulfide" ]
D
sciq-6039
multiple_choice
Transgenic animals are animals that have incorporated a gene from another species into their what?
[ "habitats", "food", "genome", "enemies" ]
C
sciq-8256
multiple_choice
During adulthood, what is needed for the production of sperm?
[ "testosterone", "estrogen", "steroids", "androgen" ]
A
sciq-5288
multiple_choice
What is defined as an antigen that causes an allergy?
[ "an expectorant", "a disinfectant", "an allergen", "a pollutant" ]
C
sciq-4834
multiple_choice
What are the two components of the autonomic nervous system?
[ "neurons and sympathetic", "crystallisation and sympathetic", "empathetic and sympathetic", "parasympathetic and sympathetic" ]
D
sciq-69
multiple_choice
How do some animals change their depth?
[ "metamorphosis", "mass migration", "spontaneous mutations", "by changing their density" ]
D
ai2_arc-724
multiple_choice
Light is refracted the least when passing through a
[ "telescope lens.", "a tinted window.", "magnifying glass.", "a pair of eyeglasses." ]
B
sciq-7023
multiple_choice
What is the measure of the amount of energy found in sound waves?
[ "frequency", "decibels", "intensity", "density" ]
C
sciq-355
multiple_choice
The cell wall acts as an extra layer of protection, helps the cell maintain its shape, and prevents what?
[ "Respiration", "dehydration", "exhaustion", "extinction" ]
B
scienceQA-3411
multiple_choice
How long is a long-distance running race?
[ "11 millimeters", "11 meters", "11 kilometers", "11 centimeters" ]
C
The best estimate for the length of a long-distance running race is 11 kilometers. 11 millimeters, 11 centimeters, and 11 meters are all too short.
scienceQA-10837
multiple_choice
Select the plant.
[ "Sheep eat plants.", "Octopuses eat animals that live underwater.", "Raspberry bushes have green leaves.", "Bumble bees drink nectar from flowers." ]
C
A bumble bee is an animal. It drinks nectar from flowers. A bumble bee is an insect. Bumble bees have soft hairs that make them look fuzzy. An octopus is an animal. It eats animals that live underwater. An octopus has two eyes and eight arms. A sheep is an animal. It eats plants. People raise sheep for their fur, meat, and milk. A raspberry bush is a plant. It has green leaves. Most raspberries are red. But raspberries can also be purple or yellow.
sciq-482
multiple_choice
What is the most common form of dwarfism in humans?
[ "anemia", "malnutrition", "achondroplasia", "alopecia" ]
C
sciq-411
multiple_choice
What are passed from one generation to the next so species can survive?
[ "mutations", "selections", "adaptatioins", "fluctuations" ]
C
sciq-10886
multiple_choice
Organic compounds are molecules built around what element?
[ "phosphorus", "oxygen", "carbon", "helium" ]
C
sciq-192
multiple_choice
What "plumbing" structures inside the veins maintain a unidirectional flow of blood despite the low blood pressure?
[ "funnels", "valves", "tubes", "pumps" ]
B
sciq-415
multiple_choice
This heat is used to convert water into steam, which is then used to turn a turbine, thus generating what?
[ "solar power", "electrical power", "heating power", "radiation power" ]
B
sciq-10092
multiple_choice
Blood flows into the kidney through which artery?
[ "blood artery", "renal artery", "pulminary artery", "main artery" ]
B
sciq-2395
multiple_choice
What is the only planet we know that has plate techtonics?
[ "Saturn", "Mars", "Jupiter", "earth" ]
D
sciq-9683
multiple_choice
When a rock is altered by heat from a nearby magma, what occurs?
[ "form metamorphism", "contact metamorphism", "evaporation", "sublimation" ]
B
scienceQA-4778
multiple_choice
Select the invertebrate.
[ "piranha", "West African rubber frog", "tiger", "peacock butterfly" ]
D
A tiger is a mammal. Like other mammals, a tiger is a vertebrate. It has a backbone. A piranha is a fish. Like other fish, a piranha is a vertebrate. It has a backbone. A peacock butterfly is an insect. Like other insects, a peacock butterfly is an invertebrate. It does not have a backbone. It has an exoskeleton. A West African rubber frog is an amphibian. Like other amphibians, a West African rubber frog is a vertebrate. It has a backbone.
sciq-9036
multiple_choice
Which state of matter is not common on earth?
[ "respiration", "plasma", "liquid", "gas" ]
B
sciq-1374
multiple_choice
Which proteins bind to the surfaces of microorganisms and are particularly attracted to pathogens that are already tagged by the adaptive immune system?
[ "complement proteins", "whereby proteins", "attractive proteins", "mobilize proteins" ]
A
sciq-1912
multiple_choice
Living things need to take in nutrients so that they can grow and create what?
[ "plasma", "energy", "protein", "hydrogen" ]
B
sciq-3854
multiple_choice
What organism is an important pioneer on cleared rock and soil surfaces, such as volcanic flows and burned forests?
[ "pigment", "cysts", "lichen", "algae" ]
C
sciq-3594
multiple_choice
What kind of joints are capable of a wide range of movements, classified as gliding, angular, rotational, or special?
[ "glandular", "locking", "fibrous", "synovial" ]
D
sciq-5045
multiple_choice
The release of mature eggs that occurs at the midpoint of each cycle is called?
[ "semination", "ovulation", "fertilization", "induction" ]
B
sciq-10216
multiple_choice
Mutualism is an interaction between individuals of two different species that has what effect on both of them?
[ "harmful", "abnormal", "beneficial", "neutral" ]
C
sciq-3552
multiple_choice
Which is the ultimate energy source in a bear's food chain?
[ "decomposers", "heat", "plants", "sun" ]
D
sciq-1172
multiple_choice
Rubbing your hands together warms them by converting work into what energy?
[ "kinetic energy", "motion energy", "layer energy", "thermal energy" ]
D
sciq-9376
multiple_choice
What vision defect occurs because the eye is too long?
[ "blindness", "hyperopia", "myopia", "astigmatism" ]
C
sciq-6478
multiple_choice
The way in which the sun produces light is called what?
[ "tumescence", "photosynthesis", "rays", "incandescence" ]
D
sciq-7182
multiple_choice
Size is a general feature of cell structure that relates to?
[ "activation", "timing", "function", "instance" ]
C
sciq-8591
multiple_choice
What is the simplest type of carbon-based compounds?
[ "particles", "Buckminsterfullerine", "hydrocarbons", "graphite" ]
C