id
stringlengths
6
15
question_type
stringclasses
1 value
question
stringlengths
15
683
choices
listlengths
4
4
answer
stringclasses
5 values
explanation
stringclasses
481 values
sciq-2106
multiple_choice
What is the most common fossil fuel?
[ "methane", "uranium", "coal", "diesel oil" ]
C
sciq-8486
multiple_choice
What is the scientific term for the act of eating or feeding?
[ "excretion", "ingestion", "swallowing", "secretion" ]
B
sciq-6175
multiple_choice
From what did the first proto-oncogenes arise?
[ "carcinogens", "spores", "viral infections", "bacteria" ]
C
sciq-6791
multiple_choice
What are the special compartments that are surrounded by membranes inside eukaryotic cells called?
[ "organelles", "vacuoles", "ribosomes", "chloroplasts" ]
A
sciq-11419
multiple_choice
At how many places does points source pollution enter water?
[ "two", "four", "one", "three" ]
C
sciq-11362
multiple_choice
Structural adaptations in flying animals often contribute to reduced what?
[ "eyesight", "blood flow", "body mass", "respiration" ]
C
sciq-8008
multiple_choice
What are the two main types of air pollutants?
[ "a and b", "good and bad", "primary and secondary", "new and old" ]
C
sciq-4019
multiple_choice
What laws regulate radiation doses to which people can be exposed?
[ "dose regulation laws", "medical regulation laws", "radiation protection laws", "voltage protection laws" ]
C
sciq-6571
multiple_choice
Defined as total distance traveled divided by elapsed speed, average speed is a scalar quantity that does not include what?
[ "pressure", "direction", "shift", "size" ]
B
sciq-9046
multiple_choice
For any given species, what term means the maximum population that can be supported by the environment?
[ "tipping point", "mass extinction", "carrying capacity", "zero population growth" ]
C
sciq-3888
multiple_choice
The standard reduction potential can be determined by subtracting the standard reduction potential for the reaction occurring at the anode from the standard reduction potential for the reaction occurring at this?
[ "Spinner", "electrode", "plasma", "cathode" ]
D
sciq-829
multiple_choice
Which forests are found throughout the ocean in temperate and arctic climates?
[ "coral reefs", "kelp", "mangrove", "cedar" ]
B
sciq-1331
multiple_choice
The major salivary enzyme is called?
[ "sucrase", "amylase", "mucosa", "synthase" ]
B
sciq-6246
multiple_choice
Radon (rn) is a radioactive gas formed by the decay of naturally occurring uranium in rocks such as granite. it tends to collect in the basements of houses and poses a significant health risk if present in indoor air. many states now require that houses be tested for radon before they are what?
[ "modified", "built", "seen", "sold" ]
D
sciq-7930
multiple_choice
According to which process, sublevels and orbitals are filled with electrons in order of increasing energy?
[ "particle dynamics", "hausen", "aufbau", "Schrodinger's cat" ]
C
sciq-6250
multiple_choice
What is the name of the iron-containing oxygen-transport protein in the red blood cells of all vertebrates?
[ "platelet", "hemoglobin", "ferric acid", "plasma" ]
B
sciq-9686
multiple_choice
What consists of all the biotic and abiotic factors in an area and their interactions?
[ "habitat", "ecosystem", "community", "macroevolution" ]
B
sciq-10526
multiple_choice
Excretion is the process of removing excess water and wastes from the body. what are the main organs of excretion?
[ "lungs", "eyes", "kidneys", "brains" ]
C
sciq-3551
multiple_choice
For an exothermic chemical reaction, energy is given off as reactants are converted to what?
[ "forms", "exports", "imports", "products" ]
D
sciq-1534
multiple_choice
When can mutations occur in genes?
[ "after dna replication", "during dna replication", "during rna replication", "after rna replication" ]
B
sciq-2266
multiple_choice
Mass spectrometry today is used extensively in chemistry and biology laboratories to identify chemical and biological substances according to their ratios of what?
[ "volume to charge", "ph to charge", "mass to volume", "mass-to-charge" ]
D
sciq-11244
multiple_choice
The ocean basin begins where the ocean meets what?
[ "river", "bay", "sea", "land" ]
D
sciq-327
multiple_choice
Alkenes have double bonds while alkynes have what?
[ "triple bonds", "quadruple bonds", "single bonds", "equal bonds" ]
A
sciq-3851
multiple_choice
What system plays a critical role in the regulation of vascular homeostasis?
[ "circulatory system", "nervous system", "renal system", "endocrine system" ]
B
sciq-2384
multiple_choice
The light-sensing cells in the retina are called rods and what else?
[ "cones", "sensor cells", "stents", "light cells" ]
A
sciq-2159
multiple_choice
What contains the spore-forming asci?
[ "the ascocarps", "flagella", "sporozoa", "mushroom cap" ]
A
ai2_arc-1073
multiple_choice
Scientists study fossils to learn about
[ "the composition of the Earth.", "patterns of crystal formation.", "physical properties of rocks.", "organisms from long ago." ]
D
sciq-9070
multiple_choice
What do you call a condition caused by mutations in one or more genes?
[ "mutation disorder", "evolutionary disorder", "intrinsic disorder", "genetic disorder" ]
D
sciq-3586
multiple_choice
Matching donor and recipient blood types is important because different blood types have different types of what?
[ "charges", "antigens", "antibodies", "coagulants" ]
C
sciq-11520
multiple_choice
Alkenes can react with what to form alcohols?
[ "sugars", "water", "air", "proteins" ]
B
sciq-3512
multiple_choice
Where is chlorine gas produced?
[ "in the nucleus", "carbon cycle", "epidermis", "at the anode" ]
D
ai2_arc-830
multiple_choice
For a class project, students converted the daily temperatures for the past month from Fahrenheit to Celsius. What is the clearest way for the students to present the information?
[ "table", "formula", "pie chart", "line graph" ]
A
sciq-2995
multiple_choice
What encloses the genetic material of the virus?
[ "the capsid", "mitochondria", "the spindle", "nuclei" ]
A
sciq-5169
multiple_choice
Higher pressures increase the solubility of what?
[ "molecules", "bases", "fuels", "gases" ]
D
sciq-864
multiple_choice
What are created based upon the loss or gain of electrons?
[ "crystals", "atoms", "hydrogens", "ions" ]
D
sciq-6450
multiple_choice
How are layers of the atmosphere divided?
[ "temperature gradients", "color gradients", "density gradients", "air gradients" ]
A
sciq-2672
multiple_choice
What do you call the angle of the earth's axis of rotation?
[ "vertical tilt", "dynamic tilt", "horizontal tilt", "axial tilt" ]
D
sciq-9234
multiple_choice
How does burning matter affect its mass?
[ "the mass increases", "the mass remains the same", "the mass decreases", "the mass quadruples" ]
B
sciq-6886
multiple_choice
What is a measure of the force of gravity pulling on an object of a given mass?
[ "solidity", "scale", "effect", "weight" ]
D
sciq-1829
multiple_choice
What was the first amino acid to be isolated?
[ "histon", "histamine", "asparagine", "glutathione" ]
C
sciq-7157
multiple_choice
The genome of an organism consists of one or more what?
[ "hemoglobin molecules", "require molecules", "rna molecules", "dna molecules" ]
D
sciq-695
multiple_choice
Water has the properties of cohesion and what else?
[ "degradation", "absorption", "adhesion", "diffusion" ]
C
sciq-11446
multiple_choice
Oxygen reaches what veinless part of the eye by diffusing through its tear layer?
[ "pupil", "retina", "cornea", "membranes" ]
C
ai2_arc-131
multiple_choice
Which question can most likely be determined through a scientific investigation?
[ "Who will be the winner of the next lottery?", "What football team will win the next game?", "What is the amount of light needed to grow tomatoes?", "Which four types of bird feathers have the prettiest colors?" ]
C
sciq-428
multiple_choice
What is the base of nearly all food chains on earth?
[ "atherosclerosis", "synthesis", "photosynthesis", "glycolysis" ]
C
sciq-9620
multiple_choice
What term is used to describe the conditions in the sky on any particular day?
[ "forecast", "humidity", "weather", "temperature" ]
C
sciq-10890
multiple_choice
What are all of the digits that can be known with certainty in a measurement plus an estimatied last digit called?
[ "determined figures", "significant figures", "miniature figures", "important figures" ]
B
sciq-6515
multiple_choice
What is the term for a symbiotic relationship in which one species benefits while the other species is not affected?
[ "pollenation", "parasitism", "mutualism", "commensalism" ]
D
sciq-8062
multiple_choice
What part of the body do hookworms infest?
[ "intestines", "skin", "lungs", "brain" ]
A
sciq-2787
multiple_choice
What are two types of lobe finned fish?
[ "piranha and pike", "sharks and piranha", "moles and lungfish", "coelacanths and lungfish" ]
D
sciq-11359
multiple_choice
What term is used to describe large numbers of species that go extinct in a short amount of time?
[ "mass extinction", "species extinction", "formation extinction", "organic extinction" ]
A
sciq-2615
multiple_choice
Eukaryotic cells contain what type of structures that possess special functions?
[ "organelles", "chloroplasts", "fibers", "cell membranes" ]
A
sciq-7420
multiple_choice
The loss of oxygen to the heart muscle causes that part of the tissue to what?
[ "thrive", "beat erratically", "beat harder", "die" ]
D
sciq-3250
multiple_choice
What kind of path does the energy of an electromagnetic wave take?
[ "straight line", "circuitous", "fluctuating", "elliptical" ]
A
sciq-2937
multiple_choice
Root-like projections anchor adults of what colony-dwelling animals to solid surfaces such as rocks and reefs?
[ "corals", "anemones", "sponges", "molluscs" ]
C
sciq-33
multiple_choice
What type of ions do ionic compounds contain?
[ "positive and charged", "positive and negative", "regular and irregular", "negative and neutal" ]
B
sciq-3859
multiple_choice
The reaction of calcium oxide with carbon dioxide forms what?
[ "calcium carbonate", "carbon monoxide", "nitrogen carbonate", "nitrogen" ]
A
sciq-11242
multiple_choice
Photosynthesis involves reactions that are dependent on what?
[ "food", "light", "water", "air" ]
B
sciq-7029
multiple_choice
A crater can usually be found on the top of what kind of volcanoes?
[ "Compound", "composite", "Dome", "Shield" ]
B
sciq-2983
multiple_choice
What term is used to describe the sequence of elementary steps that together comprise an entire chemical reaction?
[ "potassium mechanism", "source mechanism", "reaction mechanism", "elemental mechanism" ]
C
sciq-2051
multiple_choice
What is another term for stored energy?
[ "potential energy", "mechanical energy", "inertia", "latency" ]
A
sciq-311
multiple_choice
The process of breaking down food into nutrients is known as __________
[ "digestion", "absorption", "filtration", "energy" ]
A
ai2_arc-371
multiple_choice
Why do scientists perform multiple trials of the same experiment?
[ "to include additional variables in the experiment", "to complete the steps of the experiment in less time", "to find a less expensive way to conduct the experiment", "to increase the likelihood of accurate experiment results" ]
D
sciq-4994
multiple_choice
Of all the mineral nutrients, what contributes the most to plant growth and crop yields?
[ "oxygen", "methane", "nitrogen", "silicon" ]
C
sciq-8536
multiple_choice
What is a copy of an image formed by reflection or refraction?
[ "an example", "a photographic image", "an image", "a mirror image" ]
C
sciq-7028
multiple_choice
Life on earth is carbon-based. organisms need not only energy but also carbon ________ for building bodies?
[ "ions", "monoxide", "atoms", "crystals" ]
C
sciq-2255
multiple_choice
What type of winds blow only over a limited area?
[ "Planetary", "periodic", "local", "trade" ]
C
sciq-831
multiple_choice
Mechanical energy can also usually be expressed as the sum of kinetic energy and what other kind of energy?
[ "partial energy", "directional energy", "potential energy", "reflective energy" ]
C
sciq-7987
multiple_choice
"red-shift" refers to a shift toward red in the spectrum from what celestial bodies?
[ "comets", "galaxies", "stars", "planets" ]
C
ai2_arc-373
multiple_choice
The depth of Lake Superior can be measured by sending sound waves to the bottom and measuring the period of time it takes for the reflected sound waves to return to the surface. Which of the following would indicate a shallow depth?
[ "There is no return signal.", "The return signal is very weak.", "The return signal appears almost instantaneously.", "The return signal comes back at a different speed" ]
C
sciq-10430
multiple_choice
In a car race on a circular track, where the start and finish line are the same, what quantity is neglible?
[ "total distance", "total displacement", "total acceleration", "partial displacement" ]
B
sciq-9204
multiple_choice
How do seed plants benefit from herbivores?
[ "rainfall of seeds", "dispersal of seeds", "consumption of seeds", "radiation of seeds" ]
B
sciq-7062
multiple_choice
How is the radioactive decay measured?
[ "half-life", "quarter-life", "carbon dating", "alpha emission" ]
A
sciq-3609
multiple_choice
What is another term for a hand lens?
[ "projecting glass", "traversing glass", "magnifying glass", "seeing glass" ]
C
sciq-9726
multiple_choice
What type of tissue transmits nerve impulses throughout the body?
[ "connective", "epithelial", "nervous", "fibrous" ]
C
sciq-9449
multiple_choice
Mechanisms for establishing cellular asymmetries include morphogen gradients, localized determinants, and what other type of interactions?
[ "inductive", "conductive", "reductive", "electromagnetic" ]
A
sciq-1830
multiple_choice
Where is the food stored before being mixed with the chyme?
[ "histopathology of the stomach", "top of the stomach", "fundus of the stomach", "hemispherical of the stomach" ]
C
sciq-4605
multiple_choice
The lipids that are connected to the glucose pathways are cholesterol and triglycerides. cholesterol is a lipid that contributes to cell membrane flexibility and is a precursor of this?
[ "steroid hormones", "ammonia hormones", "Thrombopoietin", "Somatostatin" ]
A
sciq-2118
multiple_choice
What is the part of a plant whose primary role is to collect sunlight and make food by photosynthesis?
[ "roots", "leaves", "seeds", "stems" ]
B
sciq-2042
multiple_choice
Any structure inside a cell that is enclosed by a membrane is called?
[ "an article", "an organelle", "an enclave", "a particle" ]
B
sciq-5666
multiple_choice
Receptor clustering happens when what binds to the receptors?
[ "lipid molecules", "carbohydrates", "enzymes", "fas molecules" ]
D
sciq-757
multiple_choice
A doorknob and a ferris wheel are examples of what type of simple machine?
[ "ball and axle", "wheel and axle", "ball and socket", "lever and pulley" ]
B
sciq-1380
multiple_choice
Where does most of the mass for an atom reside?
[ "protons", "nucleus", "neutrons", "electrons" ]
B
sciq-8079
multiple_choice
The carbon cycle can be thought of in terms of two interdependent cycles - cellular respiration and what else?
[ "glycolysis", "photosynthesis", "pollination", "spermatogenesis" ]
B
sciq-6028
multiple_choice
At what time of life does menopause occur?
[ "adolescence", "young adulthood", "in middle adulthood", "old age" ]
C
sciq-9179
multiple_choice
The chloroplasts contained within the green algal endosymbionts still are capable of what process associated with plants?
[ "photosynthesis", "respiration", "germination", "reproduction" ]
A
sciq-6998
multiple_choice
What is the process of removing wastes and excess water from the body?
[ "ingestion", "depletion", "diffusion", "excretion" ]
D
sciq-7837
multiple_choice
Name the physicist who discovered radioactivity?
[ "louis pasteur", "neal degrasse tyson", "albert einstein", "antoine henri becquerel" ]
D
sciq-5724
multiple_choice
In which process do two light nuclei combine to produce a heavier nucleus and great energy?
[ "nuclear fusion", "certain fusion", "light fusion", "general fusion" ]
A
sciq-4832
multiple_choice
What hormone controls milk production in mammary glands?
[ "pepsin", "prolactin", "melanin", "dopamine" ]
B
sciq-2646
multiple_choice
What type of molecules sit within a membrane and contain an aqueous channel that spans the membrane’s hydrophobic region?
[ "microorganisms", "mole", "channel", "osmotic fluid" ]
C
sciq-1522
multiple_choice
In what two ways are volcanic eruptions characterized?
[ "localized and general", "explosive and non-explosive", "minor and explosive", "non-explosive and serious" ]
B
sciq-2178
multiple_choice
What kind of conditions are often inherited as simple recessive traits?
[ "genetic neurotransmitters", "genetic diversivers", "genetic ratios", "genetic disorders" ]
D
scienceQA-6691
multiple_choice
Which of the following organisms is the producer in this food web?
[ "bat star", "sea cucumber", "black rockfish", "phytoplankton" ]
D
Producers do not eat other organisms. So, in a food web, producers do not have arrows pointing to them from other organisms. The kelp does not have any arrows pointing to it. So, the kelp is a producer. The black rockfish has an arrow pointing to it, so it is not a producer. The phytoplankton does not have any arrows pointing to it. So, the phytoplankton is a producer. The bat star has an arrow pointing to it, so it is not a producer. The sea cucumber has arrows pointing to it, so it is not a producer.
sciq-8728
multiple_choice
What do you call the fast-moving air currents high in the troposphere?
[ "stationary fronts", "jet streams", "wind streams", "cyclones" ]
B
sciq-5361
multiple_choice
The electron transport chains are located on the inner membrane of which organelle?
[ "chloroplast", "lysosome", "mitochondrion", "axon" ]
C
sciq-10708
multiple_choice
Developing cars that run on hydrogen gas can help solve our dependence on what?
[ "nonrenewable fossil fuels", "oxygen", "water", "food" ]
A
sciq-3312
multiple_choice
What is the ph of pure water?
[ "5", "4", "2", "7" ]
D
sciq-9237
multiple_choice
The hamstrings flex the leg, whereas the quadriceps femoris have what effect?
[ "contract", "stabilize", "no effect", "extend" ]
D
sciq-5869
multiple_choice
What's the name for a cluster of genes, where one promoter serves adjacent genes?
[ "opteron", "nucleus", "plasma", "proton" ]
A