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question
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481 values
sciq-4379
multiple_choice
The second shell holds a maximum of how many electrons?
[ "6", "12", "8", "9" ]
C
sciq-4927
multiple_choice
In which organ of the body does gluconeogenesis primarily take place?
[ "spleen", "heart", "liver", "kidney" ]
C
sciq-1902
multiple_choice
How much unpolarized light does a polarized filter block?
[ "50%", "40 %", "100%", "60 %" ]
A
sciq-2315
multiple_choice
Scientists perform experiments to test their hypotheses because sometimes the nature of natural universe is what?
[ "this obvious", "very obvious", "become obvious", "not obvious" ]
D
sciq-9728
multiple_choice
How do parathyroid hormones react as a body ages?
[ "decrease with age", "increase with age", "help with age", "use with age" ]
B
sciq-1487
multiple_choice
The different types of what systems work together to carry out all the life functions of the individual?
[ "maturation systems", "organ systems", "heartbeat systems", "digestive systems" ]
B
sciq-9185
multiple_choice
What branch of biology studies animal behavior?
[ "ethology", "geology", "microbiology", "embryology" ]
A
sciq-1681
multiple_choice
The appendicular skeleton is made up of all bones of the upper and lower what?
[ "hemispheres", "limbs", "digestive tract", "organs" ]
B
sciq-10040
multiple_choice
What property of fluids causes something to stay on or near the surface of water?
[ "buoyancy", "weight", "strength", "density" ]
A
sciq-8428
multiple_choice
Diphenylamine acts as a stabilizer for certain types of what?
[ "explosives", "enzymes", "toxins", "proteins" ]
A
sciq-9918
multiple_choice
What are the two most common vision problems?
[ "colorblindness and farsightedness", "nearsightedness and farsightedness", "glaucoma and nearsightedness", "colorblindness and nearsightedness" ]
B
sciq-6284
multiple_choice
A small quake preceding a large quake is called what?
[ "warning shock", "aftershock", "foreshock", "preshock" ]
C
sciq-9178
multiple_choice
What occurs when a former inhabited area gets disturbed?
[ "primary succession", "secondary succession", "tertiary succession", "tropical succession" ]
B
sciq-10432
multiple_choice
The long mouth-tube that some insects use to suck up the nectar of the flower is called what?
[ "stamen", "pistil", "proboscis", "prosthesis" ]
C
sciq-8809
multiple_choice
What is a measure of how much energy is needed to change the temperature of a substance?
[ "specific heat", "specific gravity", "thermal potential", "momentum" ]
A
scienceQA-27
multiple_choice
How long is a guitar?
[ "1 centimeter", "1 meter", "1 kilometer", "1 millimeter" ]
B
The best estimate for the length of a guitar is 1 meter. 1 millimeter and 1 centimeter are too short. 1 kilometer is too long.
sciq-10128
multiple_choice
What is the change of state from a gas to a liquid?
[ "combustion", "fermentation", "condensation", "vaporation" ]
C
sciq-2402
multiple_choice
Groundwater dissolves minerals and carries the ions in a what?
[ "mixture", "jet stream", "transition", "solution" ]
D
sciq-6636
multiple_choice
Light energy is absorbed by which kind of molecule?
[ "inorganic", "parasite", "chlorophyll", "nutrient" ]
C
sciq-2702
multiple_choice
What is a molecule with two fatty acids and a modified phosphate group attached to a glycerol backbone?
[ "phospholipid", "amino acid", "polymer", "carbohydrate" ]
A
sciq-5261
multiple_choice
All compounds, whether ionic or covalent, must be what?
[ "organic neutral", "metallic neutral", "abnormal neutral", "electrically neutral" ]
D
sciq-2647
multiple_choice
What state of matter has a definite volume, but takes the shape of the container?
[ "solid", "gas", "liquid", "plasma" ]
C
sciq-6712
multiple_choice
Quantum mechanics involves the study of material at what level?
[ "physical", "chemical", "cellular", "atomic" ]
D
sciq-11527
multiple_choice
According to the first law of thermodynamics, what can neither be created nor destroyed?
[ "energy", "food", "light", "fuel" ]
A
sciq-9222
multiple_choice
Why does the fish odour diminish when you put lemon juice over cooked fish?
[ "due to neutralization", "due to acidification", "due to evaporation", "due to oxidation" ]
A
sciq-266
multiple_choice
What produces hormones that directly regulate body processes?
[ "hippocampus", "lymph glands", "hypothalamus", "pancreas" ]
C
sciq-9329
multiple_choice
What are the three types of symbiosis?
[ "internalization , parasitism , commensalism", "connectionism , parasitism , commensalism", "mutualism, parasitism, commensalism", "commensalism, osmosis, internalization" ]
C
ai2_arc-497
multiple_choice
What is the main function of the circulatory system?
[ "secrete enzymes", "digest proteins", "produce hormones", "transport materials" ]
E
ai2_arc-583
multiple_choice
A single-cell organism can do everything a cell from a multicellular organism can do except
[ "specialize.", "reproduce.", "use energy.", "make protein." ]
A
sciq-9031
multiple_choice
What type of energy is useful to humans because it's ease of transport and conversion to other forms of energy?
[ "physical", "electrical", "potential", "heat" ]
B
sciq-3118
multiple_choice
What is the production of offspring without gamete fusion called?
[ "organic reproduction", "sexual reproduction", "ideal reproduction", "asexual reproduction" ]
D
sciq-7457
multiple_choice
What is the most abundant type of biological entity on the earth?
[ "bacteria", "insects", "reptiles", "viruses" ]
D
sciq-7865
multiple_choice
What is the most abundant element in the universe?
[ "nitrogen", "carbon", "hydrogen", "helium" ]
C
sciq-3928
multiple_choice
What is it called when you touch a charged object to the earth?
[ "cooling", "grounding", "dispersion", "charging" ]
B
sciq-6066
multiple_choice
The marine west coast climate gets lots of rain because of what being nearby?
[ "the Sun", "the mountains", "highways", "the ocean" ]
D
sciq-1543
multiple_choice
Puberty and other physical changes occurs during which stage of development?
[ "infancy", "childhood", "adolescence", "adulthood" ]
C
scienceQA-8016
multiple_choice
How long is a long-distance running race?
[ "20 miles", "20 yards", "20 feet", "20 inches" ]
A
The best estimate for the length of a long-distance running race is 20 miles. 20 inches, 20 feet, and 20 yards are all too short.
sciq-1140
multiple_choice
What was the early study of chemistry called?
[ "alchemy", "pharmacology", "magic systems", "horticulture" ]
A
sciq-11038
multiple_choice
What causes high winds and monsoon storms in the desert?
[ "high summer temperature", "low winter temperature", "moderate spring temperature", "and-12 summer temperature" ]
A
sciq-841
multiple_choice
What type of blood cells transport oxygen to the tissues so they can function?
[ "red blood cells", "depleted blood cells", "white blood cells", "mutated blood cells" ]
A
sciq-6153
multiple_choice
When water is heated by magma and makes it's way to the surface what is created?
[ "eruption", "volcanic", "geyser", "trough" ]
C
sciq-11543
multiple_choice
Bone tissues include compact bone, spongy bone, bone marrow, and?
[ "cartilage", "epithelium", "esophagus", "periosteum" ]
D
sciq-2797
multiple_choice
Once cells _______, they can no longer divide
[ "mature", "differentiate", "propagate", "migrate" ]
B
sciq-1271
multiple_choice
What causes eutrophication to occur?
[ "excess of carbonate and other nutrients", "excess of fertilizers and other nutrients", "excess of decreased and other nutrients", "excess of increased and other nutrients" ]
B
sciq-9492
multiple_choice
How do heavy alkanes affect the skin?
[ "they do not affect the skin", "form a protective layer", "color the skin", "damage the skin" ]
B
sciq-11237
multiple_choice
The most common curved mirrors are what?
[ "concave", "convex", "solid", "spherical" ]
D
sciq-5814
multiple_choice
What is the measure of the change in velocity of a moving object called?
[ "inclination", "acceleration", "stimulation", "force" ]
B
sciq-5476
multiple_choice
What is the name for the line dividing the earth's hemispheres?
[ "longitude", "latitude", "equator", "plate" ]
C
ai2_arc-208
multiple_choice
Which two systems are involved when waste and water are removed from blood as it flows through the kidneys?
[ "respiratory and circulatory", "digestive and respiratory", "digestive and urinary", "urinary and circulatory" ]
D
sciq-10627
multiple_choice
A newborn baby has a soft spot on the top of its head. over the next few months, the soft spot gradually does what?
[ "grows", "weakens", "shrinks", "hardens" ]
D
sciq-8063
multiple_choice
Parasitic leeches feed off of what?
[ "blood", "tumor", "tissue", "brain" ]
A
sciq-11378
multiple_choice
Vascular tissue allowed these plants to do what?
[ "grow smaller", "have more flowers", "live shorter", "grow taller" ]
D
sciq-11096
multiple_choice
What are the two methods in which mutations arise in dna?
[ "produced or spontaneous", "accelerated or spontaneous", "induced or spontaneous", "accelerated or random" ]
C
sciq-4736
multiple_choice
Young eutherians complete their embryonic development within what?
[ "ovaries", "uterus", "spores", "pollen grains" ]
B
sciq-7672
multiple_choice
The oldest fossil of land plants date back how many millions of years?
[ "470 million years", "350 million years", "520 million years", "430 million years" ]
A
sciq-1158
multiple_choice
Because they are charged (polar), these ions do not diffuse through what?
[ "protein", "membrane", "substrate", "cell wall" ]
B
sciq-4237
multiple_choice
Cells in green algae divide along cell plates called what?
[ "xanthophylls", "phragmoplasts", "cellulose", "chloroplasts" ]
B
sciq-2252
multiple_choice
Organs are groups of what working together?
[ "tissues", "tendons", "muscles", "bones" ]
A
sciq-341
multiple_choice
What basic plant structure facilitates dispersal of pollen and fruit by raising reproductive structures?
[ "flower", "root", "leaf", "stem" ]
D
sciq-4268
multiple_choice
Large or small numbers are expressed in scientific notation, which use powers of this?
[ "16", "4", "10", "2" ]
C
sciq-4772
multiple_choice
How do most reptiles produce?
[ "sexually", "biologically", "occasionally", "asexually" ]
A
sciq-7183
multiple_choice
Altitude is height above what?
[ "sea level", "the water table", "the earth's core", "the earth's surface" ]
A
ai2_arc-719
multiple_choice
Using fossil fuels wisely and avoiding waste is an example of
[ "rationing.", "recycling.", "substitution.", "conservation." ]
D
ai2_arc-1118
multiple_choice
A scientist is measuring the amount of movement along a fault. Which tool is best used for making this measurement?
[ "barometer", "stopwatch", "meter stick", "magnifying lens" ]
C
sciq-3584
multiple_choice
What is the name of the tube that carries sperm from the epididymis to the urethra?
[ "ureter", "fallopian tube", "prostate gland", "vas deferens" ]
D
sciq-6718
multiple_choice
How do fungus-like protists such as slime molds reproduce?
[ "photosynthesis", "asexually", "sexually", "with spores" ]
D
sciq-6031
multiple_choice
Where is the food supply and embryo stored in a seed?
[ "hull", "plumule", "tegmen", "epicotyl" ]
A
sciq-9650
multiple_choice
What kind of tissue consists of trabeculae and forms the inner layer of all bones?
[ "spongy bone tissue", "flotsam bone tissue", "corregated bone tissue", "denser bone tissue" ]
A
sciq-8981
multiple_choice
Life span is distinct from what, which means the sequence of stages a plant goes through from seed germination to seed production of the mature plant?
[ "feeding cycle", "spin cycle", "life cycle", "society cycle" ]
C
sciq-4686
multiple_choice
What are the dark areas of the moon called?
[ "craters", "maria", "laura", "hollow space" ]
B
sciq-65
multiple_choice
Which cycle tracks the flow of nitrogen through an ecosystem?
[ "life cycle", "water cycle", "nitrogen reaction", "nitrogen cycle" ]
D
sciq-9503
multiple_choice
What term is used to describe the transfer of thermal energy by particles moving through a fluid?
[ "evaporation", "convection", "condensation", "diffusion" ]
B
sciq-9387
multiple_choice
Isotopes have the same number of protons and electrons, but a different number of what?
[ "neutrons", "impurities", "reactions", "atoms" ]
A
sciq-3012
multiple_choice
What is the term for a cellular "scaffolding" that crisscrosses the cytoplasm?
[ "cytoskeleton", "protoskeleton", "cellulose", "collagen" ]
A
sciq-9565
multiple_choice
What is a spectrometer able to produce from starlight?
[ "aspect", "radio waves", "exposure", "spectrum" ]
D
sciq-4042
multiple_choice
What is the breakdown of unstable elements into stable elements called?
[ "initial decay", "radioactive decrease", "radioactive decay", "thermal decay" ]
C
sciq-11349
multiple_choice
What do you call plastids that contain the green pigment chlorophyll?
[ "Gerontoplasts", "Chromoplasts", "chloroplasts", "Leucoplasts" ]
C
sciq-7632
multiple_choice
What are the strongest chemical bonds?
[ "mutual and stock bonds", "weak and ionic bonds", "covalent and ionic bonds", "curvature and ionic bonds" ]
C
scienceQA-5671
multiple_choice
What do these two changes have in common? rust forming on a metal gate burning a candle
[ "Both are chemical changes.", "Both are caused by heating.", "Both are only physical changes.", "Both are caused by cooling." ]
A
Step 1: Think about each change. Rust forming on a metal gate is a chemical change. As the gate rusts, the metal turns into a different type of matter called rust. Rust is reddish-brown and falls apart easily. Burning a candle is a chemical change. Both the wick and the melted wax burn. They react with oxygen in the air and turn into soot, carbon dioxide, and water. 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. Burning is caused by heating. But rust forming on a metal gate is not. Both are caused by cooling. Neither change is caused by cooling.
sciq-8794
multiple_choice
Triploblasts include a broad range of animals, from flatworms to arthropods to what?
[ "mammals", "invertebrates", "cells", "vertebrates" ]
D
sciq-9006
multiple_choice
What is a winding ridge of sand deposited by a stream of meltwater called?
[ "oasis", "desert", "sand dune", "esker" ]
D
sciq-7013
multiple_choice
What causes a voltage to exist across the membrane in cells?
[ "insulators", "difference in charges", "same charge", "increase in energy" ]
B
sciq-8626
multiple_choice
Skeletal muscles must work in pairs to move bones back and forth at a joint because they can only do what?
[ "vibrate", "contract", "pull", "expand" ]
B
sciq-4439
multiple_choice
Through which organ do hookworm larvae enter the human body?
[ "through the mouth", "through the lungs", "through the rectum", "through the skin" ]
D
sciq-5662
multiple_choice
What facilitates the diffusion of ions across a membrane?
[ "ionic bonds", "photon channels", "ion channels", "passive transport" ]
C
scienceQA-4780
multiple_choice
How long is a paper clip?
[ "29 millimeters", "29 meters", "29 centimeters", "29 kilometers" ]
A
The best estimate for the length of a paper clip is 29 millimeters. 29 centimeters, 29 meters, and 29 kilometers are all too long.
sciq-4999
multiple_choice
How much time does the moon take to complete one revolution around the earth?
[ "one week", "one year", "one day", "one month" ]
D
sciq-11432
multiple_choice
Natural convection is driven by what forces?
[ "gravitational", "magnetic", "thermal", "buoyant" ]
D
sciq-2115
multiple_choice
Particles of a gas are constantly moving and bumping into things. this gives gases what?
[ "pressure", "resistance", "velocity", "strength" ]
A
sciq-2949
multiple_choice
Our sun is on the main sequence, like most stars, and it is classified by what colorful name?
[ "white dwarf", "blue dwarf", "red dwarf", "yellow dwarf" ]
D
sciq-2565
multiple_choice
Portable amplifiers have batteries that store what type of energy?
[ "chemical energy", "carbon energy", "mechanical energy", "kinetic energy" ]
A
sciq-11381
multiple_choice
What do we call an incorrect test result that should have been positive?
[ "false negative", "personal negative", "external positive", "false positive" ]
A
sciq-10915
multiple_choice
Some soil water can flow through easily. what kind of soil is this?
[ "porous", "dense", "Stationary", "permeable" ]
D
sciq-10948
multiple_choice
Coronary heart disease is caused when what blocks coronary arteries?
[ "proteins", "plaque", "carbohydrates", "fats" ]
B
ai2_arc-384
multiple_choice
When gasoline in a car engine is burned, only about 15 percent of the gasoline is converted into mechanical energy. This is because most of the energy in the gasoline is
[ "transformed into heat.", "stored for use at a later time.", "changed into chemical energy.", "used to make the vehicle move." ]
A
scienceQA-6953
multiple_choice
Select the fish below.
[ "western gorilla", "manta ray", "woodpecker", "coral snake" ]
B
A woodpecker is a bird. It has feathers, two wings, and a beak. Woodpeckers have strong beaks. They use their beaks to drill into wood to hunt for food. A coral snake is a reptile. It has scaly, waterproof skin. Coral snakes spend most of their time underground or hiding under leaves. A western gorilla is a mammal. It has fur and feeds its young milk. Gorillas live in groups called troops. The largest male in the troop is usually the leader. A manta ray is a fish. It lives underwater. It has fins, not limbs. Rays have a different shape than many other fish. Rays are large and flat. They have wide, triangle-shaped fins that help them swim long distances.
sciq-10208
multiple_choice
What are the ends of long bones called?
[ "marrow extension", "appendage", "epiphysis", "cartilage" ]
C
sciq-10406
multiple_choice
What class of invertebrate animals has additional appendages called the chelicerae and the pedipalps?
[ "arthropod", "fish", "mammals", "arachnid" ]
D
sciq-2301
multiple_choice
Birds evolved from what type of ancestor?
[ "fish", "apes", "reptile", "insect" ]
C
sciq-11603
multiple_choice
Name the fibrous joint in which two parallel bones are united to each other by fibrous connective tissue.
[ "suture", "gomphosis", "syndesmosis", "cartilage" ]
C