Across
- 5. we say our atmosphere is "___________"
- 7. this layer in the atmosphere protects us from harmful radiation
- 11. all human beings breathe this
- 12. we are the "just-right" _________ away from the sun
- 13. the planet we live on
- 14. not enough gravity would give us weak bones and ___________.
Down
- 1. our bodies are 50-70% _______________
- 2. earth is the only planet able to support __________
- 3. this is what holds us down to the planet
- 4. trees and plants need the sun for this process
- 6. we get heat, light, and _________ from the sun
- 8. the girl form the three bears story
- 9. too much gravity would break our ___________
- 10. water can help our bodies regulate body _____________