Across
- 4. Process where plants lose water through leaves
- 6. Energy of a moving objec
- 9. Positive particle in an atom
- 10. Center of an atom
- 11. Force that opposes motion between surfaces
- 14. Gas plants release in photosynthesis
- 15. Animals without backbones
Down
- 1. Force that keeps planets in orbit
- 2. Molten rock inside Earth
- 3. Process that separates mixtures using evaporation
- 5. Basic unit of life
- 7. Rock formed from cooled lava
- 8. Energy stored due to position
- 12. Heat transfer through direct contact
- 13. Organ that pumps blood