Physical and chemical change Flashcards
1
Q
chemical bond
A
an attractive force that holds two atoms together
2
Q
chemical change
A
a change in matter that forms one or more new substances
3
Q
combustion
A
a chemical change where a substance burns
4
Q
digestion
A
the breakdown of food by phsical and chemical changes
5
Q
dissolving
A
a physical change where a solid spreads through a liquid
6
Q
fuel
A
any substance that can burn
7
Q
mixing
A
a physical change where two or more substances are combined
8
Q
particle
A
an atom or molecule
9
Q
physical change
A
a change in matter that does not form new substances
10
Q
rusting
A
a chemical change where iron combines with oxygen and water
11
Q
iron oxide
A
the substance formed by rusting, a chemical change
