Matter Vocabulary - Flashcards

Front

matter

Back

anything that takes up space and has mass

Front

mass

Back

the amount of matter (stuff) in an object

Front

weight

Back

the amount of force that gravity pulls an object down to earth

Front

open system

Back

allows matter to escape or enter

Front

closed system

Back

does not allow matter to enter or escape

Front

physical change

Back

no new substance is formed; only changes state; molecules do not change; usually reversible

Front

chemical change

Back

a change in which a new substance is formed; irreversible

Front

expand

Back

to become larger; increase in size

Front

contract

Back

to become smaller; decrease in size

Front

conductors

Back

allows heat to pass through easily (metal)