Physical and Chemical Changes of Matter Flashcards
1
Q
Physical change
A
a change in the size or state of matter
2
Q
Physical change can be caused by:
A
motion, pressure, temperature
3
Q
When the molecules of matter change its called. . .
A
chemical change
4
Q
What cannot usually be reversed?
A
Chemical changes
5
Q
When the molecules change the matter. . .
A
turn into something totally different
6
Q
Clues of chemical change:
A
Gas form, light or heat appears, color change
7
Q
What CAN usually be reversed?
A
Physical change
