Across
- 2. a tasteless, odorless and invisible mix of gases that is primarily made up of oxygen and nitrogen
- 4. liquid that makes life on Earth possible
- 6. provides a place for plants to grow
- 7. substances in food that our bodies process to enable it to function
Down
- 1. study of solids
- 3. trial or test made to find out about something
- 5. living thing that grows in the earth and has a stem, leaves, and roots
- 8. to measure weight or mass.