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C371: CONCEPTS IN SCIENCE (WGU)
2026 QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
Defined as anything that occupies space and has mass; all
around us. - correct answer -Matter
rigid and possesses a definite shape - correct answer -Solids
Flows and takes the shape of a container. - correct answer -
Liquids
Takes both the shape and volume of its container. - correct
answer -Gases
A measure of the amount of matter in an object - correct answer -
Mass
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A measure of the gravitational force exerted on an object. -
correct answer -Weight
Matter is not created nor destroyed in any chemical or physical
change - correct answer -Law of Conservation of Mass
A sample of matter, either a single element or a single compound,
that has definite chemical and physical properties. Constant
composition. - correct answer -Pure Substances
any substance that cannot be broken down into simpler
substances - correct answer -Elements
a thing that is composed of two or more separate elements that
can be broken down by chemical changes. - correct answer -
Compounds
A combination of two or more substances that are not chemically
combined; can be separated by physical changes, such as
evaporation. - correct answer -Mixtures
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A mixture with a composition that varies from point to point. -
correct answer -heterogeneous mixture
(also, solution) combination of substances with a composition that
is uniform throughout - correct answer -homogeneous mixture
A characteristic of a pure substance that can be observed without
changing it into another substance. - correct answer -physical
property
A change in a substance that does not change its identity or
chemical composition. - correct answer -physical change
A characteristic of a pure substance that describes its ability to
change into different substances - correct answer -chemical
property
A change in matter that produces one or more new substances -
correct answer -chemical change
C371: CONCEPTS IN SCIENCE (WGU)
2026 QUESTIONS AND ANSWERS | A+
GRADED | WITH EXPERT SOLUTIONS
Defined as anything that occupies space and has mass; all
around us. - correct answer -Matter
rigid and possesses a definite shape - correct answer -Solids
Flows and takes the shape of a container. - correct answer -
Liquids
Takes both the shape and volume of its container. - correct
answer -Gases
A measure of the amount of matter in an object - correct answer -
Mass
, Page | 2
A measure of the gravitational force exerted on an object. -
correct answer -Weight
Matter is not created nor destroyed in any chemical or physical
change - correct answer -Law of Conservation of Mass
A sample of matter, either a single element or a single compound,
that has definite chemical and physical properties. Constant
composition. - correct answer -Pure Substances
any substance that cannot be broken down into simpler
substances - correct answer -Elements
a thing that is composed of two or more separate elements that
can be broken down by chemical changes. - correct answer -
Compounds
A combination of two or more substances that are not chemically
combined; can be separated by physical changes, such as
evaporation. - correct answer -Mixtures
, Page | 3
A mixture with a composition that varies from point to point. -
correct answer -heterogeneous mixture
(also, solution) combination of substances with a composition that
is uniform throughout - correct answer -homogeneous mixture
A characteristic of a pure substance that can be observed without
changing it into another substance. - correct answer -physical
property
A change in a substance that does not change its identity or
chemical composition. - correct answer -physical change
A characteristic of a pure substance that describes its ability to
change into different substances - correct answer -chemical
property
A change in matter that produces one or more new substances -
correct answer -chemical change
