Matter & Energy Terms Flashcards
(12 cards)
1
Q
physical change
A
a change in matter that does not change the identity of the matter
2
Q
chemical change
A
the change of one or more substances into another substance
3
Q
melting
A
substance change from solid to liquid
4
Q
boiling
A
substance change from liquid to gas
5
Q
sublimation
A
substance change from solid to gas
6
Q
deposition
A
substance change from gas to solid
7
Q
freezing
A
substance change from liquid to solid
8
Q
condensing
A
substance change from gas to liquid
9
Q
volatility
A
the ability of a substance to change easily into a gas at room temp
10
Q
density
A
the amount of matter in a unit of volume
11
Q
exothermic
A
a reaction that gives off heat or energy
12
Q
endothermic
A
a reaction that requires or absorbs heat
