Across
- 5. all the water on Earth
- 7. water that falls back to Earth's surface
- 8. a period of time that is 24 hours long
- 10. all the air on Earth
- 12. all organisms on Earth
- 13. consumer that only eats meat
- 15. consumer that eats both plants and meat
Down
- 1. something scientists make to answer questions about the real world
- 2. when a liquid turns into a gas
- 3. the pull between earth and other objects
- 4. when a gas turns into a liquid
- 6. matter that is only made of one kind of atom or molecule
- 9. all the land on Earth
- 11. consumer that only eats plants
- 14. when water falls back to Earth and refills bodies of water (rivers, lakes, oceans)
