Across
- 3. the process by which a gas turns into a liquid
- 4. a scientist who studies plants
- 7. to hit with force while moving
- 8. means two forms
- 10. means twin
- 11. active at night
- 12. an animal that is hunted by other animals for food
- 13. the process by which plants make food
- 14. vibrations
- 16. to move in a curved path around a star planet, or other space object
Down
- 1. gets energy from eating animals
- 2. to turn form a liquid into a gas
- 5. a protective layer of gases that surrounds a planet
- 6. a large space rock that travels around the sun but is not a planet
- 9. a system made up of a star and the objects that move around it
- 15. stands for Double Asteroid Redirection Test