Across
- 4. organism with multiple cells
- 6. the earth water system
- 8. gas, a gas in Earth's atmosphere that absorbs heat leaving the surface
- 10. parts of Earth that contain living organisms
- 11. cycle, the movement of water around the earth
Down
- 1. a tiny nonliving particle that reproduces inside a living cell
- 2. an animal with a backbone
- 3. a sequence of DNA that determines a trait
- 5. a material that doesn't conduct heat well
- 7. stream, high-speed winds about 10 km above the surface
- 9. average weather in a long period of time