| A | B |
|---|
| elements | the basic substance of which everything is made |
| compounds | a substance made of 2 or more types of elements chemically combined |
| mixture | a substance made of 2 or more types of elements that can be separated |
| physical properties | things you can observe about a substance; ie solid, color, texture, etc |
| reactivity | what a substance does when combined with another |
| physical change | changes that can be changed back, such as clothes becoming wet |
| chemical properties | decribes how a chemical acts with another |
| precipitate | to fall out; something forms and falls in a substance |
| chemical change | when substances combine and cannot be changed back; ie turning dough into biscuits |
| matter | what all substance are made of |
