id
string
question
string
choices
list
answer_key
string
source
string
e26815a4-200e-4fbb-bd7a-b107f4440ca3
The strength of bases is measured on what scale?
[ "litmus test", "pneumatic scale", "acid test", "ph scale" ]
ph scale
sciq
4161e98c-697b-47e0-be0c-1a51773c5a8f
What type of isomers contain the same number of atoms of each kind but differ in which atoms are bonded to one another?
[ "constitutional isomers", "structural isomers", "different isomers", "unique isomers" ]
structural isomers
sciq
f52e0de9-0a3a-4757-912d-7a2445abb905
What is the gas that gives rotten eggs and sewage their distinctive smell?
[ "methane", "hydrogen sulfide", "hydrogen peroxide", "calcium sulfide" ]
hydrogen sulfide
sciq
b105be11-c2f9-484c-902b-daf346e376e5
What two values does a blood pressure reading include?
[ "biotic and abiotic", "cholesterol and systolic", "high and low", "systolic and diastolic" ]
systolic and diastolic
sciq
eac77b81-0903-4324-893f-bdbb071d2713
In humans, what period lasts from the ninth week of development until birth?
[ "third trimester", "plasma period", "development period", "fetal period" ]
fetal period
sciq
8691ec03-a46f-40c5-946e-db9489bbdea9
Where are protons found in the atom?
[ "within electrons", "in the orbital", "outside the nucleus", "in the nucleus" ]
in the nucleus
sciq
e3de3f4d-7ef2-4707-81eb-ca0527da7071
What is produced when haploid gametes fuse in sexual reproduction?
[ "cell cluster", "deformity", "diploid zygote", "isolated zygote" ]
diploid zygote
sciq
e45f9eee-2ac3-4fc6-b870-862b70178498
What are the two different types of vascular tissues called?
[ "biotic and abiotic", "acid and base", "epidermis and dermis", "xylem and phloem" ]
xylem and phloem
sciq
9d42542f-842f-47e6-af3e-edfed60706b0
During which stage of development do all the major organs begin to form?
[ "transgenic", "third trimester", "embryonic", "nascent" ]
embryonic
sciq
222095b2-6911-4f09-97e9-da1d8129e7ee
At the anode, liquid chloride ions are oxidized to what?
[ "Heavy Gas", "nitrogen gas", "chlorine gas", "elemental gas" ]
chlorine gas
sciq
2fc157c6-9088-4d70-b831-aaadbc84dab6
A diploid cell contains two sets of what?
[ "ribosomes", "atoms", "chromosomes", "neutrons" ]
chromosomes
sciq
f5a9e305-5c91-478c-8bd5-6fca7f8f0947
On what basis are lipoproteins classified?
[ "density", "diameter", "mass", "weight" ]
density
sciq
d59f9b24-82d5-4d70-91b2-75e9ed725cdd
The two ovaries are small, oval organs on either side of what part of the body?
[ "heart", "pancreas", "lungs", "uterus" ]
uterus
sciq
970eb535-19da-469f-bc49-994eacbba25d
Gas exchange during respiration occurs primarily through what?
[ "diffusion", "secretion", "activation", "vaporization" ]
diffusion
sciq
9f216a06-55b3-49a7-b166-3c3c97fa3461
Enzymes in the stomach and small intestine break down proteins into what components?
[ "amino acids", "atoms", "antioxidants", "lactic acids" ]
amino acids
sciq
61770472-de22-4fe1-a32d-8e0d080ade82
Organisms incapable of photosynthesis that must therefore obtain energy and carbon from food by consuming other organisms are called what?
[ "photoautotrophs", "heterotrophs", "chemoautotrophs", "autotrophs" ]
heterotrophs
sciq
7332adf0-b8bd-4de8-b5fb-765afa43c21a
What allows theories to be widely accepted?
[ "evidence", "hypothesis", "theory", "observation" ]
evidence
sciq
74f4e995-7224-4ca6-9f4d-c5ab366d8b03
Elements that specifically are noted to have properties of both metals and nonmetals are known as what?
[ "metalloids", "compund metals", "alloys", "alkali metals" ]
metalloids
sciq
5b8ec511-884b-4c2d-88d2-b164493dfa16
What is the measure of change in velocity of a moving object?
[ "acceleration", "kinetic energy", "transmission", "vibration" ]
acceleration
sciq
eb524497-1e6e-4280-be0c-bf743868a3f8
What celestial events are the source of elements heavier than iron?
[ "Space", "supernovas", "galaxies", "neutrons" ]
supernovas
sciq
ab7b95a6-1fb2-4ff4-9b71-57870e5f8355
Algae are similar to plants in that they both produce their food through what process?
[ "photosynthesis", "mitosis", "hydrolysis", "cell division" ]
photosynthesis
sciq
30747f92-3441-4b46-ae30-8f3988c53821
What do fungi produce to digest nutrients?
[ "exoenzymes", "sporozoans", "pores", "amino" ]
exoenzymes
sciq
eaa06cbe-41f5-4ae7-af46-0cef942431ff
When light passes from one medium to another, it changes what?
[ "color", "speed", "density", "temperature" ]
speed
sciq
510e336f-f3e9-4c73-88f1-82fa90192e6c
The distance between the crests of electromagnetic waves is called what?
[ "crest", "trough", "wavelength", "variation" ]
wavelength
sciq
c81538de-782e-48e1-9dcd-c58ae296aafa
People with celiac disease have an immune response to what, which ultimately leads to malnutrition, cramping, and diarrhea?
[ "gluten", "lactose", "fish", "seeds" ]
gluten
sciq
6596a142-983d-4801-8375-94ebf4f24e1e
Chlorophyll is used in what food-making process that plants carry out?
[ "photosynthesis", "colorization", "isolation", "digestion" ]
photosynthesis
sciq
bd664ed3-7063-435b-a50d-ca6db242fe79
What does an ammeter measure the flow of?
[ "wind", "magnetic fields", "current through a circuit", "water under pressure" ]
current through a circuit
sciq
90770d24-ed50-4fc0-987c-8c5b7178219c
Burning forests, growing rice and raising livestock all cause a release of what into the atmosphere?
[ "oxide gases", "glucose gases", "carbonate gases", "greenhouse gases" ]
greenhouse gases
sciq
a94ed01c-e74d-4e48-ad0f-48e9eeb24389
What type of pollution comes from sewage, storm drains, septic tanks, boats, and runoff from yards?
[ "collective", "urban", "social", "municipal" ]
municipal
sciq
ca006c59-12d9-4975-a02e-1c5a7788227f
What does oil do when mixed with water?
[ "precipitates", "forms droplets", "dissolves", "dissappears" ]
forms droplets
sciq
460f3b9f-bc94-4774-9bb1-ffcaf71897ec
What is the term for the movement of individuals out of a population?
[ "emigration", "succession", "colonization", "immigration" ]
emigration
sciq
8e3ae1a6-a0fe-4499-86d0-99503c0054e8
What might a scientist do to confirm the work of another?
[ "replicate their work", "study their work", "question their methods", "develop a completely different experiment" ]
replicate their work
sciq
1bfbe9d0-103e-4f1d-a773-ef8b6ab7cfd1
Polar molecules result from differences in electronegativity of what in the molecule?
[ "ions", "atoms", "protons", "iron" ]
atoms
sciq
56fd4c89-f30c-445b-95f1-1a641e635a1a
A diver's air bubbles increase in size as he approaches the surface because what decreases?
[ "water pressure", "water weight", "water direction", "water energy" ]
water pressure
sciq
6358aebf-59d8-455e-9043-8d153313c3a2
Positive charge is mostly found in what part of an atom?
[ "nucleus", "electron shell", "ions", "neutrons" ]
nucleus
sciq
55436964-e8f9-4b07-b3ba-4551b31985c7
In the lens makers' equation, diverging lenses and virtual images are associated with what kinds of numbers?
[ "variable numbers", "negative numbers", "fractional numbers", "positive numbers" ]
negative numbers
sciq
394b6a6c-50a1-45ce-992b-edc592a29da5
What is another name for producers?
[ "autotrophs", "allergens", "rotifers", "plants" ]
autotrophs
sciq
f76606a2-94ca-4822-9bdf-024a6060de6b
Consisting of a stigma, style, and ovary, the pistil of a flower is what type of organ?
[ "female immune organ", "female respiratory organ", "female reproductive organ", "female neural organ" ]
female reproductive organ
sciq
c684a4ef-73bd-4888-aa9d-2b1ac8f22f15
Chewing insects such as dragonflies and grasshoppers have how many sets of jaws?
[ "two", "one", "four", "three" ]
two
sciq
e24a826c-3538-4165-b501-22e8bc0305d9
What kind of change occurs whenever matter changes into an entirely different substance with different chemical properties?
[ "carbon change", "reversible change", "chemical change", "physical change" ]
chemical change
sciq
1b5f0f8e-29f3-4cfe-a64a-f3702816d5de
What is a small, relatively simple single-celled organism called?
[ "prokaryote", "amoeba", "ribosome", "eukaryote" ]
prokaryote
sciq
e77909fd-0abb-4536-8aa4-a106d233fed3
The golgi apparatus works like a mail room by receiving and sending what?
[ "acids", "proteins", "particles", "enzymes" ]
proteins
sciq
ded74d33-29c7-4921-98aa-adc4199ca70b
Which part of the body has mucus and hair to trap dust and also warms and moistens air so to not harm lung tissue?
[ "the ear", "the nose", "the throat", "the tongue" ]
the nose
sciq
1fdd9e3e-9859-4cd5-b235-1830d278d76f
What are the structures in the cytoplasm where proteins are made?
[ "nucleus", "ribosomes", "chromosomes", "prokaryotes" ]
ribosomes
sciq
66c58577-f921-48e9-9ffd-447eb718c289
What is the key issue in the small-population approach?
[ "genetic mutation", "disease variation", "genetic variation", "alternative variation" ]
genetic variation
sciq
e20edc44-3ebf-4f79-a790-0dfc4bdaa61c
What is the minimum depth in the aphotic zone?
[ "150 meters", "450 meters", "10 meters", "200 meters" ]
200 meters
sciq
17727c6c-b23f-415e-b1e7-76630509a85c
What is the process by which plants gain energy and produce sugar?
[ "glycolysis", "chemosynthesis", "photosynthesis", "respiration" ]
photosynthesis
sciq
6bea44ee-7b96-4f65-ab2e-e0657157e5d7
What are embedded in the membranes of b cells and bind a variety of antigens through their variable regions?
[ "er cell receptors", "b cell receptors", "b.a.p cell receptors", "a.m. cell receptors" ]
b cell receptors
sciq
2b60422a-eb11-49da-a41c-102878a031f8
A statement that describes what always happens under certain conditions in nature is also known as what?
[ "scientific law", "hypothesis", "scientific motion", "theory" ]
scientific law
sciq
85b1bbee-986d-4095-938d-5c880eee42ef
What developmental stage do alligators lack that most other amphibians have?
[ "Egg Stage", "larval stage", "Tadpole stage", "metamorphosis" ]
larval stage
sciq
81b83e70-6ad9-4605-a2a8-058409d5b145
What attaches a muscle to a bone?
[ "veins", "tendons", "arteries", "marrow" ]
tendons
sciq
5cacf763-2325-4f3f-bc8e-98408512f008
What are two common weather characteristics of hurricanes?
[ "small winds and rainfall", "high winds and rainfall", "low winds and sandstorms", "high winds and snowfall" ]
high winds and rainfall
sciq
d583d05f-7f37-46ce-b06c-cd0382d34c52
What kind of organism causes the often fatal lung disease tuberculosis?
[ "bacteria", "algae", "virus", "pathogens" ]
bacteria
sciq
ff6f216b-3848-4efc-9e56-a0a68c730c5b
Where do plates move apart in oceans and on land?
[ "coastal zones", "unsettled plate boundaries", "divergent plate boundaries", "volcanic ridges" ]
divergent plate boundaries
sciq
db0a427e-c785-4318-a3c1-1b56795fb99f
Zeros that appear in front of all of the nonzero digits are called what?
[ "non-numbers", "zero sum game", "left-end zeros", "significant digits" ]
left-end zeros
sciq
71212433-95cc-4989-8d3a-b82c73134470
What consists of thylakoid membranes surrounded by stroma?
[ "a stem", "a photon", "a chloroplast", "a nucleus" ]
a chloroplast
sciq
e559645c-3251-40f2-8e53-401a885d4730
Portable amplifiers have batteries that store what type of energy?
[ "kinetic energy", "carbon energy", "chemical energy", "mechanical energy" ]
chemical energy
sciq
b2fef498-6b50-4d27-bc1c-9c24437f5bd0
The movement of ice causes glaciers to have cracks referred to as?
[ "anomalies", "fissures", "slides", "crevasses" ]
crevasses
sciq
d5ed76a6-2526-4ff9-a773-237e8f62be06
A muscle can return to its original length when relaxed due to a quality of muscle tissue called what?
[ "moisture", "elasticity", "viscosity", "reach" ]
elasticity
sciq
5615697e-17e1-42df-a206-6cd4c9e9b7e9
What feature of the spine helps with flexibility and strength?
[ "curves", "angle", "shape", "arrangement" ]
curves
sciq
95399b05-9bae-4916-852e-2b959b1145cc
How does a cell's membrane keep extracellular materials from mixing with it's internal components?
[ "repels extracellular materials", "absorbs extracellular materials", "destroys extracellular materials", "provides a barrier" ]
provides a barrier
sciq
1a80b7e9-8bc6-4e7d-ad43-703901d6514e
Respiratory development in the embryo begins around week 4. ectodermal tissue from the anterior head region invaginates posteriorly to form olfactory pits, which fuse with endodermal tissue of the developing pharynx. an olfactory pit is one of a pair of structures that will enlarge to become this?
[ "nasal cavity", "fluid cavity", "eye cavity", "anal cavity" ]
nasal cavity
sciq
b0d7c5b9-91fe-4d19-8291-c48939373a8f
Anything that occupies space and has mass is known as what?
[ "matter", "solid", "opaque", "dense" ]
matter
sciq
1fe660a5-b3a7-4926-9718-116a65967846
The temperature dependence of solubility can be exploited to prepare what solutions of certain compounds?
[ "instantiated", "isolated", "supersaturated", "mineralized" ]
supersaturated
sciq
bc486b81-69d6-4772-9aa3-995c7be3b5e4
Glasses are mixtures of oxides, the main component of which is silica (sio2). silica is called the glass former, while additives are referred to as this?
[ "glass modifiers", "natural modifiers", "addition modifiers", "glass actors" ]
glass modifiers
sciq
c1b29ba6-e978-46ab-b1b8-b0f2f31e7a15
What type of tissue produces and secretes several hormones involved in lipid metabolism and storage?
[ "adipose tissue", "metabolism tissue", "somatic tissue", "hormonal tissue" ]
adipose tissue
sciq
9547a200-48ce-48cb-b065-46cc37c8fcd4
What is the process in which organ systems work to maintain a stable internal environment?
[ "organ balance", "ketosis", "homogeneity", "homeostasis" ]
homeostasis
sciq
7d2b7881-98b1-4eae-9207-26cc894ac8ca
What must people with type 1 and type 2 diabetes frequently check?
[ "blood density levels", "muscle glucose levels", "blood glucose levels", "blood plasma levels" ]
blood glucose levels
sciq
a9560056-bc70-4017-b391-662be5a0d98b
What is it called when two alleles are both expressed in the heterozygous individual?
[ "shared dominance", "codominance", "weak dominance", "low dominance" ]
codominance
sciq
bb70532c-53e0-40a6-882c-69a080379a4e
What part of a spider is equipped with poison glands?
[ "vacuole", "pedipalps", "baleen", "chelicerae" ]
chelicerae
sciq
9f4e708e-44db-4526-b844-fd1b5c5abfb8
Esters are neutral compounds that undergo what process, which is a reaction with water?
[ "osmosis", "hydrolysis", "cellular respiration", "replication" ]
hydrolysis
sciq
45c17281-08f9-4aa9-acc2-dff699196295
Evolution occurs because of changes in what over time?
[ "genomes", "alleles", "atoms", "mitochondria" ]
alleles
sciq
b1bc8848-4043-47ef-b020-0cb47af98314
When does coal release most of its energy?
[ "when forming", "when falling", "when compressed", "when burning" ]
when burning
sciq
b1e304e2-b98f-40e5-9a7c-27e4c870558c
What was once believed to be the smallest of all particles, as dalton's theory proposed?
[ "nucleus", "neutron", "atom", "molecule" ]
atom
sciq
e52208ca-4481-4eb2-92fe-e0d4531811cd
The actinides are all what type of elements?
[ "multiple", "nuclear", "radioactive", "large" ]
radioactive
sciq
a3772d99-b92c-4cee-ab75-9d6c33021e93
What type of feeders are sea lilies and feather stars?
[ "suspension feeders", "bottom feeder", "silt feeders", "deposit feeder" ]
suspension feeders
sciq
d14326d9-c469-4840-a77d-f117cb678ed0
What are the proteins called that speed up biochemical reactions in cells?
[ "carbohydrates", "peptides", "hormones", "enzymes" ]
enzymes
sciq
39a1437e-a0e5-4fee-a02a-55b1bcae295c
What isotope of carbon is typically used to date ancient items?
[ "nitrogen 14", "uranium 14", "carbon 12", "carbon 14" ]
carbon 14
sciq
2333eaa1-d959-4708-9ebb-84addc3561c1
What two planets is the asteroid belt found between?
[ "mars and jupiter", "Jupiter and Saturn", "Jupiter and Earth", "Mars and Earth" ]
mars and jupiter
sciq
34369270-2364-4c6f-b932-c5f0ecdbefc5
When wood is burned what kind of energy allows the wood to burn?
[ "physical", "carbon", "radiation", "chemical" ]
chemical
sciq
f9318333-ce5e-4212-b148-29b2631cf06a
The cubic crystal system is composed of how many different types of unit cells?
[ "three", "five", "one", "four" ]
three
sciq
f6419c5d-c3ad-4c6c-ae20-da14f807cb30
In which solution is the amount of dissolved material equal both inside and outside of the cell?
[ "exothermic", "supersaturated", "hypotonic", "isotonic" ]
isotonic
sciq
483c3e94-8c1e-430f-ac6f-e813deaeffd4
What element is the most common element in the universe?
[ "helium", "hydrogen", "carbon", "nitrogen" ]
hydrogen
sciq
f10b03b7-afa4-4584-b8e1-e5689e2a9bb0
What is the term for anything that has mass and volume?
[ "matter", "gass", "energy", "liquid" ]
matter
sciq
ad0e2ef7-5de7-4b9c-87e8-aa8f0ab1afcf
What is in danger of happening when thick magma is formed?
[ "focused eruptions", "earthquakes", "continuous eruptions", "explosive eruptions" ]
explosive eruptions
sciq
7e8021f4-03e7-455e-823b-a8c5ca3f6252
The important equation pv = nrt holds true for substances in what state of matter?
[ "solids", "gas", "liquids", "products" ]
gas
sciq
f637e002-0e5c-4252-b579-6738e58b8928
The measurement of the extent of something along its greatest dimension is its what?
[ "length", "stretch", "portion", "depth" ]
length
sciq
80ff3444-90a9-46eb-b7f5-3ce1920223db
What force explains why objects may float in water?
[ "cool force", "gravity force", "buoyant force", "warm force" ]
buoyant force
sciq
3e605703-84d6-49c2-95dd-6897d382408f
Which organelle is made up of 5 to eight cup shaped, membrane covered stacks of discs known as cisternae?
[ "nucleus", "vacuole", "golgi apparatus", "endoplasmic reticulum" ]
golgi apparatus
sciq
8a06be9c-063a-43ba-bb49-11a324b4b02c
How many bones does the mammalian middle ear have?
[ "three", "twelve", "two", "four" ]
three
sciq
ac9b3cbd-47b5-42d7-a045-4e163eb4b96d
What can echinoderms sense with their simple eyes?
[ "shapes", "electricity", "colors", "light" ]
light
sciq
e7aea702-41c1-4189-b2da-752f5a64481c
What do we call water that has been used for cleaning, washing, flushing, or manufacturing?
[ "Grey water", "sewage", "groundwater", "wastewater" ]
wastewater
sciq
5c26395d-e419-4cd4-81bd-12af8040ee1a
What is the name for an area that is covered in water, or at least has soggy soil, during all or part of the year?
[ "a wetland", "coastal zone", "a crater", "a stream" ]
a wetland
sciq
75d06420-fd68-4e92-9448-87ada4ad94f8
Regulation of the reproductive system is a process that requires the action of hormones from which gland?
[ "adrenal gland", "thyroid gland", "pituitary gland", "salivary gland" ]
pituitary gland
sciq
9efdea01-b9f2-4f1f-bb9d-9a5a5c20f278
What occurs when organisms acquire and pass on new traits from one generation to the next generation?
[ "evolution", "phenomenon", "variation", "birth" ]
evolution
sciq
eb8f6fb7-917e-47ad-9575-ea75e681c540
What process provides more than 99% of energy?
[ "glycolysis", "photosynthesis", "cellular respiration", "nuclear fusion" ]
photosynthesis
sciq
806cc4f6-0d20-455b-a099-92de40f9e74a
What tissue blocks entry of pathogens in mammals?
[ "pathological", "dendritic", "esophageal", "epithelial" ]
epithelial
sciq
f13a5546-811b-4343-a4e1-561cdd658e5a
What in the axils of leaves and stems give rise to branches?
[ "chloroplasts", "meristems", "axillary buds", "nodules" ]
axillary buds
sciq
e4ed767a-e07c-421a-9b25-b640dc241ae0
The existence of what tiny, fundamental particles of matter was first proposed in the 1960s?
[ "atoms", "molecules", "quarks", "neutrons" ]
quarks
sciq
d2e849b5-b682-4870-b453-1114c19a8569
Animals that defend their area are generally known as what kinds of animals?
[ "territorial", "mutants", "carnivores", "neutral" ]
territorial
sciq