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-5905
|
multiple_choice
|
Sodium is an example of what sort of thing that cannot exist by itself in nature?
|
[
"aspect",
"element",
"compound",
"concept"
] |
B
| |
sciq-5111
|
multiple_choice
|
Toward the late stages of pregnancy, a drop in progesterone and stretching forces from the fetus lead to increasing uterine irritability and prompt labor. contractions serve to dilate the cervix and expel this?
|
[
"uteris",
"blood",
"tissues",
"newborn"
] |
D
| |
sciq-8006
|
multiple_choice
|
Bony fish can live in either of what type of aquatic biome?
|
[
"estuaries or saltwater",
"oceans or estuaries",
"coral reefs or freshwater",
"saltwater or freshwater"
] |
D
| |
sciq-5705
|
multiple_choice
|
What advantage equals the distance of effort divided by the distance the object moves and is also equal to the output force divided by the input force?
|
[
"atomic",
"mechanical",
"potential",
"constant"
] |
B
| |
sciq-7402
|
multiple_choice
|
What do plants lose the most of through the stomata?
|
[
"heat",
"water",
"chlorophyll",
"energy"
] |
B
| |
sciq-8373
|
multiple_choice
|
What can be calculated by solving the average speed formula?
|
[
"mass or time",
"accelaration",
"distance or mass",
"distance or time"
] |
D
| |
sciq-7780
|
multiple_choice
|
How is population density expressed?
|
[
"arable land per capita",
"per arable land",
"number per household",
"number per area"
] |
D
| |
sciq-10592
|
multiple_choice
|
What part of the cell is surrounded by a membrane and holds the genetic information for the cell?
|
[
"nucleus",
"lower",
"upper",
"cell wall"
] |
A
| |
sciq-10807
|
multiple_choice
|
While spermatogenesis produces four haploid sperm cells, oogenesis produces one mature what?
|
[
"ovum",
"egg",
"datum",
"semen"
] |
A
| |
sciq-2358
|
multiple_choice
|
What type of plant is the dominant group of land plants?
|
[
"grass plants",
"thermal plants",
"vascular plants",
"oxygen plants"
] |
C
| |
sciq-3988
|
multiple_choice
|
What is composed of a calcium cation and a nitrate anion?
|
[
"dynamite",
"calcium carbonate",
"nitrous oxide",
"calcium nitrate"
] |
D
| |
sciq-6576
|
multiple_choice
|
Embryos usually don't survive if they have extra or too few of these genetic units?
|
[
"genes",
"phenotypes",
"ribosomes",
"chromosomes"
] |
D
| |
sciq-7141
|
multiple_choice
|
What is the term for individuals of a species that live in a particular habitat?
|
[
"family",
"population",
"biosphere",
"ecosystem"
] |
B
| |
sciq-10039
|
multiple_choice
|
What is formed when different gases are confined to the same container?
|
[
"linear mixture",
"homogeneous mixture",
"particulate mixture",
"compact mixture"
] |
B
| |
sciq-7763
|
multiple_choice
|
What type of resource is limited in supply and cannot be replaced except over millions of years?
|
[
"capital resources",
"human resources",
"natural resource",
"renewable energy"
] |
C
| |
sciq-2071
|
multiple_choice
|
What kind of air does a continental polar air mass hold?
|
[
"warm dry air",
"cold dry air",
"frigid wet air",
"cool moist air"
] |
B
| |
sciq-9430
|
multiple_choice
|
What describes how much matter is in a certain amount of space?
|
[
"viscosity",
"mass",
"volume",
"density"
] |
D
| |
sciq-10730
|
multiple_choice
|
What type of organisms do carnivores feed on?
|
[
"decomposers",
"eggs",
"plants",
"animals"
] |
D
| |
sciq-7497
|
multiple_choice
|
Juvenile hormone modulates the activity of what?
|
[
"ecdysteroid",
"growth",
"estrogen",
"reproduction"
] |
A
| |
sciq-9034
|
multiple_choice
|
The smallest unit of structure and function in all living organisms is what?
|
[
"particle",
"mineral",
"cell",
"compound"
] |
C
| |
sciq-1501
|
multiple_choice
|
What unit are atomic radii typically measured in?
|
[
"powers",
"picometers",
"radons",
"sporozoans"
] |
B
| |
sciq-946
|
multiple_choice
|
What word describes any chemical that affects the body’s structure or function?
|
[
"gift",
"treatment",
"toxin",
"drug"
] |
D
| |
sciq-8853
|
multiple_choice
|
Are the majority of archaea chemotrophs or photosynthetic?
|
[
"chemotrophs",
"autotrophs",
"photosynthetics",
"neither"
] |
A
| |
sciq-10648
|
multiple_choice
|
Because heating results in a greater fraction of molecules having the necessary kinetic energy to escape the surface of the liquid, what occurs more quickly when liquid is heated?
|
[
"oxidation",
"evaporation",
"absorption",
"expansion"
] |
B
| |
sciq-6965
|
multiple_choice
|
What term is used to describe anything that takes up space and has mass?
|
[
"opacity",
"weight",
"matter",
"size"
] |
C
| |
scienceQA-8831
|
multiple_choice
|
What do these two changes have in common?
burning food on a stove
water boiling on a stove
|
[
"Both are caused by heating.",
"Both are chemical changes.",
"Both are only physical changes.",
"Both are caused by cooling."
] |
A
|
Step 1: Think about each change.
Food burning on a stove is a chemical change. The type of matter in the food changes. The food turns black and gives off smoke.
Water boiling on the stove is a change of state. So, it is a physical change. The liquid changes into a gas, but a different type of matter is not formed.
Step 2: Look at each answer choice.
Both are only physical changes.
Water boiling is a physical change. But burning food on a stove is not.
Both are chemical changes.
Burning food on a stove is a chemical change. But water boiling 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-2991
|
multiple_choice
|
Static friction acts on objects when they are resting on what?
|
[
"their laurels",
"a pool of water",
"a surface",
"a single point"
] |
C
|
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