EXPERT SOLUTIONS
Matter - (ANSWER)Defined as anything that occupies space and has mass; all around us.
Solids - (ANSWER)rigid and possesses a definite shape
Liquids - (ANSWER)Flows and takes the shape of a container.
Gases - (ANSWER)Takes both the shape and volume of its container.
Mass - (ANSWER)A measure of the amount of matter in an object
Weight - (ANSWER)A measure of the gravitational force exerted on an object.
Law of Conservation of Mass - (ANSWER)Matter is not created nor destroyed in any chemical or physical
change
Pure Substances - (ANSWER)A sample of matter, either a single element or a single compound, that has
definite chemical and physical properties. Constant composition.
Elements - (ANSWER)any substance that cannot be broken down into simpler substances
Compounds - (ANSWER)a thing that is composed of two or more separate elements that can be broken
down by chemical changes.
Mixtures - (ANSWER)A combination of two or more substances that are not chemically combined; can
be separated by physical changes, such as evaporation.
heterogeneous mixture - (ANSWER)A mixture with a composition that varies from point to point.
, C371: CONCEPTS IN SCIENCE (WGU) 2026 QUESTIONS AND ANSWERS | A+ GRADED | WITH
EXPERT SOLUTIONS
homogeneous mixture - (ANSWER)(also, solution) combination of substances with a composition that is
uniform throughout
physical property - (ANSWER)A characteristic of a pure substance that can be observed without
changing it into another substance.
physical change - (ANSWER)A change in a substance that does not change its identity or chemical
composition.
chemical property - (ANSWER)A characteristic of a pure substance that describes its ability to change
into different substances
chemical change - (ANSWER)A change in matter that produces one or more new substances
extensive property - (ANSWER)a property that depends on the amount of matter in a sample
intensive property - (ANSWER)a physical property that remains the same no matter how much of a
substance is present
Energy - (ANSWER)capacity to supply heat or do work- one type of work is the process of causing matter
to move against an opposing force.
Potential Energy - (ANSWER)stored energy that results from the position or shape of an object
Kinetic energy - (ANSWER)the energy of an object that is due to the object's motion
thermal energy - (ANSWER)Kinetic energy associated with the random movement of molecules or
atoms.