| A | B |
| data | information |
| hypothesis | an educated guess |
| experiment | a test to find out if a hypothesis is correct |
| conclusion | an answer to a question or problem |
| observations | information that is gathered |
| scientific method | 5 steps to solve problems |
| instruments | tools to help measure |
| atmosphere | air that surrounds the earth made of different gases |
| troposphere | atmospheric layer closest to earth |
| air pressure | pushing of air against an object |
| barometer | instrument used to measure air pressure |