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481 values
sciq-4598
multiple_choice
What is the sum of the masses of the atoms in a molecule?
[ "mass effect", "molecular mass", "atomic energy", "compound mass" ]
B
sciq-3309
multiple_choice
Living organisms release carbon dioxide into the atmosphere by what method?
[ "widespread respiration", "genomic respiration", "cellular respiration", "major respiration" ]
C
sciq-753
multiple_choice
What are needed to oxidize the noble gases to form compounds in positive oxidation states?
[ "potent oxidants", "bacteria oxidants", "protein oxidants", "metal oxidants" ]
A
sciq-2655
multiple_choice
What is the bulb called in the frontal lobe that processes smells?
[ "olfactory bulb", "auditory bulb", "sensory bulb", "peripheral bulb" ]
A
sciq-7611
multiple_choice
Weather maps show storms, air masses, and what?
[ "currents", "regions", "fronts", "patterns" ]
C
sciq-6935
multiple_choice
What celestial body in the solar system makes up most of its total mass?
[ "sun", "Jupiter", "Andromeda", "earth" ]
A
sciq-5454
multiple_choice
Biochemical reactions are optimal at physiological temperatures because many what lose function at lower and higher temperatures?
[ "carbohydrates", "enzymes", "neurons", "hormones" ]
B
sciq-5920
multiple_choice
In what part of the lungs is pulmonary gas exchanged?
[ "trachea", "bronchi", "alveoli", "bronchioles" ]
C
sciq-1479
multiple_choice
In the body, oxygen is used by cells of the body’s tissues and carbon dioxide is produced as what?
[ "food", "fuel", "waste product", "oxygen" ]
C
sciq-5943
multiple_choice
At what time of the year can tornadoes occur?
[ "spring", "summer", "winter", "any" ]
D
sciq-1966
multiple_choice
What type of structures evolved to do the same job by unrelated organisms?
[ "analogous structures", "symmetrical structures", "dioxide structures", "primal structures" ]
A
sciq-10943
multiple_choice
Shortening of muscle fibers is called what?`
[ "contraction", "diffusion", "diffusion", "shrinking" ]
A
sciq-3182
multiple_choice
What type of analysis is performed to study gene expression patterns in cells?
[ "dna analysis", "rna analysis", "proteins analysis", "residues analysis" ]
B
sciq-3136
multiple_choice
Abnormal electrical activity in the brain is the cause of what disease associated with seizures?
[ "Alzheimer's", "malaria", "anemia", "epilepsy" ]
D
sciq-274
multiple_choice
Electrons in covalent compounds are shared between the two atoms, unlike the case in what type of bonds?
[ "weak bonds", "horizontal bonds", "ionic bonds", "soluble bonds" ]
C
sciq-7518
multiple_choice
When it was found that, without the force of gravity exerting pressure on the bones, bone mass was lost in astronauts, what kind of exercise provided an antidote?
[ "sedentary", "anaerobic", "aerobic", "resistive" ]
D
sciq-5510
multiple_choice
What term describes the sequential appearance and disappearance of species in a community over time after a severe disturbance?
[ "succession", "generational replacement", "pattern", "supression" ]
A
sciq-4056
multiple_choice
What do scientists use to help explain objects or systems in simpler ways?
[ "models", "theories", "measurements", "plants" ]
A
sciq-6969
multiple_choice
What causes light to refract?
[ "bending", "blinking", "speeding up", "slowing down" ]
D
sciq-6984
multiple_choice
What is the wheeled robot developed by nasa to explore the surface of mars?
[ "mars robot", "mars rover", "mars driver", "mars SUV" ]
B
sciq-594
multiple_choice
The complete hydrolysis of starch yields what?
[ "glutamate", "insulin", "glucose", "sucrose" ]
C
sciq-6655
multiple_choice
Greater reflection off what atmospheric layer allows am radio waves to travel even farther at night than they can during the day?
[ "stratosphere", "exosphere", "troposphere", "ionosphere" ]
D
ai2_arc-195
multiple_choice
Why can steam be used to cook food?
[ "Steam does work on objects.", "Steam is a form of water.", "Steam can transfer heat to cooler objects.", "Steam is able to move through small spaces." ]
C
ai2_arc-1096
multiple_choice
Why are coal, oil, and natural gas called fossil fuels?
[ "They were once fossils.", "They were formed in prehistoric times.", "They are used to heat our homes and businesses.", "They formed from the remains of prehistoric plants and animals." ]
D
sciq-7164
multiple_choice
The molecular formula is still c 4 h 10 , which is the same formula as?
[ "carbon hydroxide", "propane", "chlorine", "butane" ]
D
sciq-11308
multiple_choice
Satellite and schwann cells are the two types of what kind of cell found in the pns?
[ "dendritic", "epidermal", "osteoclast", "glial" ]
D
sciq-568
multiple_choice
Gas particles can move randomly in what directions?
[ "few directions", "all directions", "one direction", "some directions" ]
B
scienceQA-8444
multiple_choice
What do these two changes have in common? melting wax baking an apple pie
[ "Both are only physical changes.", "Both are chemical changes.", "Both are caused by heating.", "Both are caused by cooling." ]
C
Step 1: Think about each change. Melting wax is a change of state. So, it is a physical change. The wax changes from solid to liquid. But it is still made of the same type of matter. Baking an apple pie is a chemical change. The type of matter in the pie changes when it is baked. The crust turns brown, and the apples become soft. Step 2: Look at each answer choice. Both are only physical changes. Melting wax is a physical change. But baking a pie is not. Both are chemical changes. Baking a pie is a chemical change. But melting wax is not. Both are caused by heating. Both changes are caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-3739
multiple_choice
What type of chemistry is the study of chemicals containing carbon called?
[ "bioanalytical chemistry", "organic chemistry", "inorganic chemistry", "biochemistry" ]
B
sciq-2187
multiple_choice
Which organ secretes estrogen?
[ "the testes", "the ovaries", "the thyroid", "the kidney" ]
B
sciq-5102
multiple_choice
What branch of science is the study of matter and energy?
[ "Thermodynamics", "physical science", "environmental science", "Chemistry" ]
B
sciq-8027
multiple_choice
Scientists around the world study speciation, documenting observations both of living organisms and those found in the fossil record. as their ideas take shape and as research reveals new details about how life evolves, they develop models to help explain what?
[ "spontaneous mutation", "food chains", "creation theory", "rates of speciation" ]
D
sciq-1429
multiple_choice
What is an attitude of doubt about the truthfulness of claims that lack empirical evidence?
[ "conspiracy", "independent variable", "skepticism", "speculation" ]
C
sciq-11140
multiple_choice
What is the name of the process in which both the system and its environment can return to exactly the states they were in by following the reverse path?
[ "conductive process", "reversible process", "Remote process", "Different Process" ]
B
sciq-4453
multiple_choice
The turbine of a windmill spins and creates what?
[ "electricity", "pollution", "grains", "lightning" ]
A
sciq-7450
multiple_choice
What are the cone-like structures that contain sporangia called?
[ "gametes", "medulla", "strobili", "contrail" ]
C
sciq-1890
multiple_choice
Which carrier molecule becomes less effective at binding oxygen as temperature increases?
[ "water", "helium", "hemoglobin", "hydrogen" ]
C
sciq-3369
multiple_choice
Over time, what changes solid rock into pieces?
[ "weathering", "leaching", "creep", "metamorphosis" ]
A
sciq-5188
multiple_choice
What are the messenger molecules of the endocrine system?
[ "enzymes", "acids", "hormones", "neurons" ]
C
sciq-763
multiple_choice
What pathway in a plant do water and nutrients travel through from the roots to the leaves?
[ "skin", "stem", "bark", "flowers" ]
B
scienceQA-5502
multiple_choice
What do these two changes have in common? a piece of avocado turning brown a piece of pizza rotting in a trashcan
[ "Both are only physical changes.", "Both are chemical changes.", "Both are caused by heating.", "Both are caused by cooling." ]
B
Step 1: Think about each change. A piece of avocado turning brown is a chemical change. The avocado reacts with oxygen in the air to form a different type of matter. If you scrape off the brown part of the avocado, the inside will still be green. The inside hasn't touched the air. So the chemical change hasn't happened to that part of the avocado. A piece of pizza rotting is a chemical change. The matter in the pizza breaks down and slowly turns into a different type of matter. 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. Neither change is caused by heating. Both are caused by cooling. Neither change is caused by cooling.
sciq-1939
multiple_choice
The term science comes from a latin word that means?
[ "were knowledge", "having information", "only knowledge", "having knowledge" ]
D
sciq-4112
multiple_choice
Where does photosynthesis occur in plants?
[ "golgi bodies", "cell membrane", "in chloroplasts", "nucleus" ]
C
sciq-3889
multiple_choice
What are proteins made up of?
[ "lewis acids", "amino acids", "atoms acids", "detected acids" ]
B
sciq-5872
multiple_choice
What is the term for when the water of the ocean slowly rises and falls?
[ "dew", "waves", "currents", "tides" ]
D
sciq-2318
multiple_choice
What kind of proteins either activate or deactivate the transcription of other genes?
[ "master complex proteins", "master regulatory proteins", "perfect regulatory proteins", "carbon proteins" ]
B
sciq-3632
multiple_choice
Where do polychaetes live?
[ "the tundra", "lakes", "ocean floor", "great plains" ]
C
ai2_arc-963
multiple_choice
Which of the following is a SOURCE of light?
[ "Earth", "planet", "star", "moon" ]
C
sciq-2475
multiple_choice
The primary role of leaves is to collect what?
[ "sunlight", "insects", "pollen", "precipitation" ]
A
sciq-7932
multiple_choice
How many types of leptons are there?
[ "six", "twelve", "two", "nine" ]
A
sciq-8423
multiple_choice
What type of maps detail detail the types and locations of rocks found in an area?
[ "gnomic maps", "contour maps", "geologic maps", "polar maps" ]
C
sciq-7209
multiple_choice
What is a continuous flow of electric charge called?
[ "magnetism", "microwave current", "electric current", "powered current" ]
C
sciq-980
multiple_choice
Unlike plants, animal species rely almost exclusively on what type of reproduction?
[ "regeneration", "multiplication", "sexual reproduction", "pollination" ]
C
sciq-11343
multiple_choice
Plants can tell the time of day and time of year by sensing and using various wavelengths of what
[ "sunlight", "precipitation", "moisture", "lunar cycles" ]
A
sciq-7642
multiple_choice
Water is a versatile solvent that can dissolve many ionic and polar molecular solutes to make what?
[ "sulfide solutions", "aqueous solutions", "chloride solutions", "sulfate solutions" ]
B
sciq-4120
multiple_choice
Incomplete dominance and epistasis are both terms that define what?
[ "genetic habits", "genetic difficulties", "genetic relationships", "learned behaviors" ]
C
sciq-7144
multiple_choice
What type of dating determines which of two fossils is older or younger than the other but not their age in years?
[ "normal", "constant", "normative", "relative" ]
D
sciq-3157
multiple_choice
What is made up of organisms of the same species that live in the same area?
[ "tissue", "population", "system", "countries" ]
B
sciq-3422
multiple_choice
Where do most amphibians live, salt water or fresh water?
[ "fresh water", "saltwater", "deserts", "aquariums" ]
A
sciq-7560
multiple_choice
What is the term for the number that describes an electron's orbital orientation in space?
[ "magnetic electron number", "relative quantum number", "imaging quantum number", "magnetic quantum number" ]
D
ai2_arc-27
multiple_choice
Michael learned that the movement of Earth in the solar system causes changes that can be seen on the planet. Which change could be seen on Earth in the time it takes Earth to rotate once on its axis?
[ "day becoming night", "winter changing to spring", "January changing to February", "a new moon becoming a full moon" ]
A
ai2_arc-365
multiple_choice
Which of the following best describes a mineral?
[ "the main nutrient in all foods", "a type of grain found in cereals", "a natural substance that makes up rocks", "the decomposed plant matter found in soil" ]
C
sciq-6329
multiple_choice
Molecular geometry is the three-dimensional arrangement of atoms in a what?
[ "molecule", "nucleus", "DNA", "genes" ]
A
sciq-5500
multiple_choice
The three main rock types are igneous, metamorphic, and what?
[ "silicate", "crystalline", "basalt", "sedimentary" ]
D
sciq-6099
multiple_choice
What are are organisms that feed on small pieces of organic matter?
[ "difference feeders", "bottom feeders", "waste feeders", "deposit feeders" ]
D
sciq-388
multiple_choice
Water gains and loses what more slowly than does land, affecting seasonal conditions inland and on the coast?
[ "humidity", "heat", "minerals", "volume" ]
B
sciq-4229
multiple_choice
How many stars are in our solar system?
[ "one", "none", "two", "three" ]
A
sciq-3868
multiple_choice
What manages the material and energy resources of the cell?
[ "cell wall", "metabolism", "respiration", "nucleus" ]
B
sciq-7551
multiple_choice
What distant and extraordinarily energetic objects now seem to be early stages of galactic evolution with a supermassive black-hole-devouring material?
[ "quasars", "neutrinos", "stars", "pulsars" ]
A
sciq-5702
multiple_choice
A hot-water heating system uses what type of energy to heat water?
[ "atmospheric energy", "negative energy", "thermal energy", "potential energy" ]
C
sciq-10328
multiple_choice
Fusion is another nuclear process that can be used to produce energy. in this process, smaller nuclei are combined to make larger nuclei, with an accompanying release of this?
[ "cells", "mineral", "energy", "food" ]
C
ai2_arc-730
multiple_choice
Which action is most likely a learned behavior?
[ "A bird builds a nest.", "A spider spins a web.", "A lion cub practices its hunting skills.", "An earthworm moves away from bright light." ]
C
sciq-4409
multiple_choice
What happens to the volume of a balloon when you add moles of gas to it by blowing up?
[ "changes randomly", "stays the same", "decreases", "increases" ]
D
sciq-2613
multiple_choice
What kind of hormones are released into the environment for communication between animals of the same species?
[ "reactions", "pheromones", "peptides", "hormones" ]
B
sciq-2458
multiple_choice
What process involves the flow of heat from warmer objects to cooler objects?
[ "conduction", "activation", "convection", "radiation" ]
A
sciq-10416
multiple_choice
What type of mammals includes opossums, kangaroos, and koalas?
[ "monotremes", "marsupials", "crustaceans", "arthropods" ]
B
sciq-6358
multiple_choice
What part of the brain regulates certain hormones associated with reproduction during breeding seasons?
[ "thalamus", "frontal lobe", "hippocampus", "hypothalamus" ]
D
sciq-2444
multiple_choice
Which is larger: the human sperm or the human egg?
[ "zygote", "human sperm", "human egg", "same size" ]
C
sciq-10319
multiple_choice
What term is used to express the measurement of how high land is above sea level?
[ "latitude", "elevation", "distance", "knots" ]
B
sciq-11398
multiple_choice
What is created by the polymerization of glucose?
[ "cellulose", "glucose", "carbonate", "methane" ]
A
sciq-985
multiple_choice
What do all cells have in common?
[ "same function", "life span", "same shape", "small size" ]
D
sciq-605
multiple_choice
What type of speciation occurs when groups from the same species are geographically isolated for long periods?
[ "symbiotic", "allopatric", "prokaryotic", "asexual" ]
B
ai2_arc-913
multiple_choice
Which question can be answered using an investigation done by a science class?
[ "What is the climate on Jupiter?", "Do plants grow differently with and without light?", "Where is the warmest place on Earth that has life?", "How far do monarch butterflies migrate?" ]
B
sciq-3841
multiple_choice
What orbits an atoms' nucleus?
[ "positively charged protons", "isotopes", "neutrally charged ions", "negatively charged electrons" ]
D
sciq-9608
multiple_choice
All atoms have equal numbers of what two particles?
[ "nuclei and neutrons", "photons and protons", "electrons and neutrons", "electrons and protons" ]
D
sciq-1431
multiple_choice
What process is the primary function of the branching internal tubules called protonephridia?
[ "thermoregulation", "osmoregulation", "enculturation", "calcification" ]
B
sciq-7005
multiple_choice
Combining nonpolar olive oil and polar vinegar yields what type of mixture?
[ "omnigeneous", "amorphous", "homogeneous", "heterogeneous" ]
D
sciq-603
multiple_choice
What tissue do clubmosses have that mosses do not?
[ "vascular tissue", "dioxide tissue", "nuclei", "chorophyll" ]
A
sciq-6120
multiple_choice
Sutures, gomphoses, and syndesmoses are types of what, which are found where adjacent bones are strongly united by connective tissue?
[ "cartilage", "ligaments", "fibrous joints", "metallic joints" ]
C
sciq-5056
multiple_choice
A magnet can exert force on objects without touching them, as long as they are within what?
[ "gravitational field", "magnetic field", "molecular field", "audio field" ]
B
sciq-6110
multiple_choice
What occurs when there is a sudden and large falling of rocks down a slope?
[ "avalanche", "earthquake", "landslide", "tsunami" ]
C
sciq-9995
multiple_choice
Foresters commonly inoculate pine seedlings with a type of what to promote growth?
[ "proteins", "soil", "yeast", "fungi" ]
D
sciq-427
multiple_choice
Felsic, intermediate, mafic, and ultramafic are types of composition of what rock group?
[ "Sedimentary", "asteroids", "igneous", "metamorphic" ]
C
sciq-6947
multiple_choice
What kind of rock forms when material such as gravel, sand, silt or clay is compacted and cemented together?
[ "ingenious", "limestone", "craters", "sedimentary" ]
D
sciq-1545
multiple_choice
What type of drugs can increase water loss by interfering with the recapture of solutes and water from the forming urine?
[ "diuretics", "hallucinogens", "disassociates", "sedatives" ]
A
sciq-6954
multiple_choice
Heat and light are forms of what, which refers to the ability to do work?
[ "waves", "fuel", "energy", "food" ]
C
sciq-7850
multiple_choice
Tissues of marine bony fishes gain what from their surroundings?
[ "toxins", "mercury", "absorb salts", "excess salts" ]
D
scienceQA-10685
multiple_choice
How long is a bike path?
[ "5 centimeters", "5 kilometers", "5 millimeters", "5 meters" ]
B
The best estimate for the length of a bike path is 5 kilometers. 5 millimeters, 5 centimeters, and 5 meters are all too short.
sciq-2007
multiple_choice
What forms when the dna in the nucleus wraps around proteins?
[ "ribosomes", "chromosomes", "rna", "genes" ]
B
sciq-11627
multiple_choice
What helps represent age-sex structure of the population?
[ "biome model", "density graph", "population pyramid", "habitat chart" ]
C