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481 values
sciq-1847
multiple_choice
Before the atmosphere became oxygenated, the planet was subjected to what harmful energy source, meaning the first organisms would have flourished where they were more protected?
[ "radiation", "convection", "evaporation", "conduction" ]
A
sciq-2566
multiple_choice
The movement of ice causes glaciers to have cracks referred to as?
[ "fissures", "anomalies", "crevasses", "slides" ]
C
sciq-5058
multiple_choice
Saturated hydrocarbons get their name because they are saturated with what atoms?
[ "hydrogen", "oxygen", "nitrogen", "helium" ]
A
sciq-5539
multiple_choice
Convection generally involves the transfer of what type of energy?
[ "radioactive", "sunlight", "magnetic", "thermal" ]
D
sciq-10981
multiple_choice
What is the force that slows down or stops motion?
[ "thrust", "tension", "friction", "resistance" ]
C
sciq-8839
multiple_choice
What basic plant structure can add support and anchorage?
[ "roots", "lower leaves", "soils", "stems" ]
A
sciq-244
multiple_choice
What term that shows how fast a population is growing includes new members added to the population over a given period, as well as old members removed from the population?
[ "emigration", "birth rate", "population density", "growth rate" ]
D
sciq-7452
multiple_choice
The mechanics of dynein-based bending involve a process that resembles what?
[ "running", "jumping", "walking", "standing" ]
C
sciq-2434
multiple_choice
What do monotremes lack though they have hair and produce milk?
[ "skin", "tail", "nerves", "nipples" ]
D
sciq-5213
multiple_choice
Glass, rubber, and plastics are examples of which type of solids?
[ "dubious", "porous", "aqueous", "amorphous" ]
D
sciq-8798
multiple_choice
What do you call the sudden flow of mud down a slope because of gravity?
[ "rockflow", "mountainside", "typhoon", "mudslide" ]
D
ai2_arc-792
multiple_choice
Which human activity often has a harmful effect on the environment?
[ "recycling paper and plastic", "riding a bicycle to school", "helping seeds to germinate", "throwing garbage into a stream" ]
D
sciq-6305
multiple_choice
What are structures that protect the coast like barrier islands called?
[ "domes", "dunes", "fortresses", "breakwaters" ]
D
ai2_arc-1106
multiple_choice
Which source of data about Nevada resources is likely to be most current and reliable?
[ "a science encyclopedia", "an article in a local newspaper", "a government-maintained website", "a student's classroom presentation" ]
C
sciq-11297
multiple_choice
What is it called when a mistake occurs in dna replication.
[ "radiation", "adaptation", "degradation", "mutation" ]
D
sciq-10836
multiple_choice
Behind a ship, what is the giant rectangular bucket that is dragged along from the behind called?
[ "prop", "wig", "trousers", "dredge" ]
D
sciq-11677
multiple_choice
High explosives create shock waves that exceed the speed of sound, a phenomenon that goes by what term?
[ "ion speed", "supersonic", "light speed", "turbulence" ]
B
sciq-3189
multiple_choice
What do omnivores eat?
[ "only animals", "only plants", "only seafood", "plants & animals" ]
D
sciq-1837
multiple_choice
Phototrophic organisms capture light energy from the sun and convert it into what type of energy inside their cells?
[ "solar power", "radiation energy", "mechanical energy", "chemical energy" ]
D
sciq-8109
multiple_choice
What layer is below the lithosphere and in the upper mantle?
[ "magnetosphere", "troposphere", "hydrosphere", "asthenosphere" ]
D
scienceQA-4540
multiple_choice
How long is a leather belt?
[ "80 meters", "80 millimeters", "80 centimeters", "80 kilometers" ]
C
The best estimate for the length of a leather belt is 80 centimeters. 80 millimeters is too short. 80 meters and 80 kilometers are too long.
sciq-5048
multiple_choice
The magnitude of the momentum vector is the product of what two properties?
[ "mass and speed", "work and speed", "acceleration and speed", "volume and speed" ]
A
sciq-1744
multiple_choice
Antibiotics can be used to fight what, in general?
[ "bacteria", "viruses", "fever", "pathogens" ]
A
sciq-5839
multiple_choice
What do you call an incomplete outer shell of an atom?
[ "helium shell", "motile shell", "nucleic shell", "valence shell" ]
D
sciq-5474
multiple_choice
What sort of issues can be determined by looking for certain particles in amniotic fluid?
[ "impossible disorders", "artificial disorders", "organic disorders", "genetic disorders" ]
D
sciq-8043
multiple_choice
What do refrigerator magnets contain that make them stick to a refrigerator door?
[ "steel", "iron", "copper", "zinc" ]
B
sciq-5061
multiple_choice
What comes first in the life cycle of a plant?
[ "pair", "seed", "flower", "garden" ]
B
sciq-1071
multiple_choice
Hardness, density, color, and melting and boiling points are all considered what types of properties?
[ "chemical", "thermal", "physical", "visible" ]
C
sciq-2552
multiple_choice
What are the structures in the cytoplasm where proteins are made?
[ "chromosomes", "prokaryotes", "nucleus", "ribosomes" ]
D
sciq-10749
multiple_choice
The lungs, kidneys, skin, and large intestine are all part of what organ system?
[ "digestive", "sensory", "respiratory", "excretory" ]
D
sciq-8026
multiple_choice
What is the largest and most complex algae
[ "green algae", "brown algae", "strange algae", "open algae" ]
B
sciq-1804
multiple_choice
What are materials that are poor thermal conductors called?
[ "thermal insulators", "sunlight insulators", "pollution insulators", "warmth insulators" ]
A
ai2_arc-728
multiple_choice
During which activity will light most likely be refracted?
[ "placing a scarf over the shade of a lamp", "viewing objects using the side mirror of a car", "looking at pebbles through the water in a stream", "using a flashlight to light up a forest path at night" ]
C
sciq-3140
multiple_choice
What is the first stage of cellular respiration?
[ "electron transport", "Krebs cycle", "glycolysis", "photosynthesis" ]
C
sciq-7449
multiple_choice
What is the cloud of brown dust-like power that escapes when a puffball fungus is touched?
[ "pollon", "seeds", "spores", "ions" ]
C
sciq-11206
multiple_choice
What element on the periodic table forms the most diverse compounds?
[ "oxygen", "carbon", "helium", "hydrogen" ]
B
sciq-1637
multiple_choice
What does the placenta sustain during pregnancy?
[ "the fetus", "the mother", "the endocrine system", "the heart" ]
A
sciq-6687
multiple_choice
Latitude, humidity, and elevation affect the type of what, a term for a large naturally occurring community?
[ "territory", "climate", "ecosystem", "biome" ]
D
sciq-8474
multiple_choice
What type of bond generally forms between a metal and non-metal?
[ "horizontal", "soluble", "ionic", "unbreakable" ]
C
sciq-6078
multiple_choice
Pseudopods are false what?
[ "fingers", "teeth", "eyes", "feet" ]
D
sciq-6621
multiple_choice
What do you call resources that can be replaced at the rate they are being used?
[ "viable", "renewable", "innovative", "abundant" ]
B
sciq-6918
multiple_choice
What unit of power is equal to 1 joule of energy per second?
[ "watt", "volt", "hertz", "byte" ]
A
sciq-10599
multiple_choice
Mosses, liverworts, and hornworts are examples of what type of plant in which gametophyte generation is dominant?
[ "vascular plants", "photoreactive plants", "nonvascular plants", "choanocyte plants" ]
C
sciq-9793
multiple_choice
All enzymes have an optimal temperature and what?
[ "ions", "ph", "shapes", "weight" ]
B
sciq-4489
multiple_choice
Where do stratus clouds occur in the troposphere?
[ "high", "mid-region", "mid to high region", "low" ]
D
sciq-5392
multiple_choice
Which two systems together provide support to the body and allow for movement?
[ "vascular and muscular", "skeletal and muscular", "skeletal and digestive", "muscular and nervous" ]
B
sciq-9339
multiple_choice
Why does photosynthesis not occur in the deep-water zone?
[ "it is pressurized", "it is dark", "it is cold", "it is stagnant" ]
B
sciq-2547
multiple_choice
Chewing insects such as dragonflies and grasshoppers have how many sets of jaws?
[ "one", "four", "two", "three" ]
C
sciq-6900
multiple_choice
What is the first step in protein synthesis?
[ "transcription", "mutation", "reproduction", "differentiation" ]
A
sciq-11255
multiple_choice
What makes blue cheese blue?
[ "mites", "rennit", "rot", "fungus" ]
D
ai2_arc-482
multiple_choice
Which statement best describes the motion of water molecules as the water changes state from steam to liquid?
[ "The molecules move faster and occupy more space.", "The molecules move slower and occupy more space.", "The molecules move faster and occupy less space.", "The molecules move slower and occupy less space." ]
D
sciq-3319
multiple_choice
Arteries, veins, and capillaries are the three main types of what?
[ "blood vessels", "blood shapes", "blood pathways", "cell structures" ]
A
sciq-1878
multiple_choice
Sebaceous glands produce an oily substance called what?
[ "synovial fluid", "sebum", "ear wax", "pus" ]
B
ai2_arc-69
multiple_choice
Two elements in the same group on the Periodic Table of the Elements are most similar in their
[ "atomic mass.", "number of protons.", "atomic size.", "chemical reactivity." ]
D
sciq-716
multiple_choice
Humans use many compounds that were first discovered or derived from living organisms as medicines: secondary plant compounds, animal toxins, and antibiotics produced by these?
[ "molecules and fungi", "bacteria and fungi", "tumors and fungi", "bacteria and tumors" ]
B
sciq-5141
multiple_choice
How many electrons can be accommodated in the first electron shell's orbital?
[ "1", "2", "none", "3" ]
B
sciq-6730
multiple_choice
What travels at a rate of 300,000 kilometers per second, or nearly instantaneously?
[ "air", "light", "sound", "gravity" ]
B
sciq-5897
multiple_choice
What is the specialized tissue that transports water and nutrients throughout the plant and allows these plants to grow taller?
[ "blood vessels", "dioxide tissue", "fiber tissue", "vascular tissue" ]
D
sciq-2765
multiple_choice
What connects the two hemispheres of the brain?
[ "disruption callosum", "corpus callosum", "holy callosum", "The brain stem" ]
B
sciq-10398
multiple_choice
A warm-air heating system uses what kind of energy to heat air?
[ "thermal", "nuclear", "atmospheric", "cosmic" ]
A
sciq-8991
multiple_choice
A solution is what type of mixture, where the dissolved particles are spread evenly through the mixture?
[ "homogeneous", "heterogeneous", "saline", "gaseous" ]
A
sciq-6047
multiple_choice
Individual nucleotides can be linked together through their phosphate groups to form?
[ "nucleic acid polymers", "atoms", "nitrous acid polymers", "dna" ]
A
scienceQA-3797
multiple_choice
What do these two changes have in common? mixing lettuce and salad dressing sewing an apron
[ "Both are caused by cooling.", "Both are chemical changes.", "Both are caused by heating.", "Both are only physical changes." ]
D
Step 1: Think about each change. Mixing lettuce and salad dressing is a physical change. Together, the salad and dressing make a mixture. But making this mixture does not form a different type of matter. Sewing an apron is a physical change. The fabric and thread that make up the apron get a new shape, but the type of matter in each of them does not change. 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-31
multiple_choice
In order to create food, what do photosynthetic protists use?
[ "thermal energy", "light energy", "decayed matter", "hydrocarbons" ]
B
sciq-8057
multiple_choice
What type of fertilization do most reptiles have?
[ "budding", "internal", "spawning", "external" ]
B
sciq-11586
multiple_choice
What system disorders include kidney stones, kidney failure, and urinary tract infections?
[ "urinary system", "digestive system", "renal system", "nervous system" ]
A
sciq-9814
multiple_choice
We all start as a single cell and soon grow into what?
[ "egg", "embryo", "nucleus", "uterus" ]
B
sciq-1550
multiple_choice
Cancers derived from epithelial cells are referred to as what?
[ "caricatures", "nodules", "adenomas", "carcinomas" ]
D
sciq-3534
multiple_choice
What type of fibrous joint is found between most bones of the skull?
[ "trecature", "suture", "lobiture", "aperture" ]
B
sciq-6370
multiple_choice
What happens to the length of the days in the fall?
[ "they stay the same", "they change randomly", "they get shorter", "they get longer" ]
C
sciq-10636
multiple_choice
Name the plant considered to be the ancestor of plants?
[ "grass", "brown algae", "green algae", "ferns" ]
C
sciq-11229
multiple_choice
What kind of reaction do you see when the concentration of reactants is higher?
[ "faster reaction rate", "slow reaction rate", "constant reaction rate", "regular reaction rate" ]
A
sciq-4920
multiple_choice
A statement is considered what if it is open to being falsified?
[ "premature", "hypothesis", "valid", "untrue" ]
B
sciq-7501
multiple_choice
Who created the idea of an evolutionary tree to represent the relationships between different species and their common ancestors?
[ "charles darwin", "Isaac Newton", "Scopes", "Carl Sagan" ]
A
sciq-7636
multiple_choice
In the equation for pressure, how is force expressed?
[ "teraflops", "newtons", "meters", "pounds" ]
B
sciq-5226
multiple_choice
Radon is inert and generally unreactive because it is which kind of gas?
[ "ignoble gas", "noble gas", "ideal gas", "transitive gas" ]
B
sciq-10864
multiple_choice
When a wave travels down a string, the string vibrates up and down at right angles to the wave's what?
[ "gravity", "pressure", "direction", "frequency" ]
C
sciq-6691
multiple_choice
Sugars are simple types of what biochemical compounds and possess relatively small molecules?
[ "lipids", "proteins", "carbohydrates", "vegetables" ]
C
sciq-6549
multiple_choice
What bond is a force of attraction between ions and atoms?
[ "chemical bond", "carbon bond", "Ionic bond", "radiation bond" ]
A
sciq-11601
multiple_choice
Photosynthesis is initiated by what hitting plants?
[ "dirt", "air", "moisture", "sunlight" ]
D
sciq-10393
multiple_choice
A virus is essentially dna or rna surrounded by a coat of what?
[ "protein", "acids", "paint", "organism" ]
A
sciq-10355
multiple_choice
The three layers of protective coverings of the spinal cord is called what?
[ "tendons", "meninges", "dermis", "muscles" ]
B
sciq-883
multiple_choice
What unit of measurement is typically used for rainfall?
[ "pounds", "inches", "feet", "gallons" ]
B
sciq-10093
multiple_choice
Growth and development in humans is most rapid during what two stages?
[ "bounce and adolescence", "flutter and adolescence", "infancy and adolescence", "teen and adults" ]
C
sciq-9238
multiple_choice
Many ceramics are composed of what, which are salts containing anions composed of silicon and oxygen?
[ "vinylates", "crystals", "silicates", "soils" ]
C
sciq-4172
multiple_choice
What term is used to describe a solute that is water fearing?
[ "hydrogenic", "anti-hydral", "claustrophobic", "hydrophobic" ]
D
sciq-8454
multiple_choice
Uncontrolled cell growth can lead to tumors and what disease?
[ "vascular disease", "cirrhosis", "cancer", "kidney failure" ]
C
sciq-5110
multiple_choice
Oxidation does not necessarily require heating. which is the common and natural method of oxidation?
[ "ageing", "fermentation", "rusting", "boiling" ]
C
sciq-1100
multiple_choice
What type of field does earth have?
[ "magnetic", "atmospheric", "force field", "seismic" ]
A
sciq-1173
multiple_choice
What is the opposite of nuclear fusion?
[ "might fission", "energy fission", "nuclear fission", "Solar Power" ]
C
sciq-10781
multiple_choice
Ionic liquids heating a salt to its melting point produces a what?
[ "gas", "table salt", "plasma", "molten salt" ]
D
ai2_arc-383
multiple_choice
A student is shown a slide of cells from a species of producer in a food web. The student observes that the cells have chloroplasts. What conclusion about the food web is best supported by these findings?
[ "The producers capture energy from sunlight.", "The food web is found in a terrestrial ecosystem.", "The producers in the web are single-celled organisms.", "The food web contains many herbivores and omnivores." ]
A
sciq-3826
multiple_choice
Water is polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule, which is described by what term meaning "water-loving"?
[ "cytosolic", "hydrophobic", "aqueous", "hydrophilic" ]
D
sciq-3440
multiple_choice
Which part of the earth is made of the rigid, brittle, solid crust and uppermost mantle?
[ "atmosphere", "thermosphere", "troposphere", "lithosphere" ]
D
sciq-8869
multiple_choice
Which factor causes a cannon ball to move horizontally and then fall on the ground?
[ "fluid motion", "projectile motion", "downward motion", "cone motion" ]
B
sciq-10419
multiple_choice
What makes up most of the interior of a plant?
[ "support tissue", "conjunction tissue", "transport tissue", "ground tissue" ]
D
sciq-9298
multiple_choice
Cardiomyocytes are striated muscle cells found where?
[ "in cardiac tissue", "in the diaphram", "in lung tissue", "in the intestines" ]
A
sciq-1617
multiple_choice
What are the outer-shell electrons of an atom called?
[ "valence electrons", "outer electrons", "helium electrons", "organism electrons" ]
A
ai2_arc-611
multiple_choice
Which body of water has the fewest plants and animals living in it?
[ "ocean", "stream", "glacier", "estuary" ]
C
sciq-7178
multiple_choice
Electrical energy consumed can be expressed as the product of power multiplied by what else?
[ "energy", "time", "work", "speed" ]
B