| A | B |
|---|
| contract | agreement between two or more people |
| unsafe | not following the rules |
| accident | result of not following safety procedures |
| safety | result of following the rules |
| materials | all the things used in an experiment |
| density | how tightly packed is the matter |
| millimeter | 1 one thousands of a meter |
| weight | the gravitational pull on an object |
| mass | how much matter is in an object |
| meter | unit of measurement (similar yard stick) |
| centimeter | 1 one-hundreth of a meter |
| volume | how much it holds |
| process | the steps in an experiment |
| hypothesis | educated guess, if....then statement |
| variable | the item that changes |
| experiment | tests the hypothesis |
| conclusion | result of the experiment |
| waft | pulling a smell to your face |
