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Science Unit 4

Vocabulary Words

solid Matter that has a definite shape and volume.
liquid Matter that has a definite volume but no definite shape.
gas Matter that has no definite shape or volume.
water vapor Water in its gas form.
heat transfer The process in which heat moves from one substance to another.
atmosphere A blanket of gases and tiny bits of dust that surrounds Earth.
oxygen The gas in air that you and many living things need to live.
thermal energy The energy of moving particles of matter
conductor A material which heat moves through easily.
volume A measure of how much space an object takes up.
Created by: Ms. Leichling