Across
- 2. remains of plants and animals from millions of years ago
- 4. the force of pull to the center of the earth
- 5. the uneven heating of the earth causing it to slowly get warmer over time
- 6. when something begins to get hotter
- 12. when a plant uses light energy to turn it into food for them to live
- 15. the planet that we live and thrive on and are striving to keep it safe and well
- 17. center of the earth that also helps heat the earth
- 18. a gas that can be used for pain relief
- 19. when something begins to get colder
- 21. the coldest layer in the atmosphere
- 23. the outermost region of an atmosphere
- 24. the shield of gases surrounding the earth and protecting it
- 26. a type of warmth from the sun
- 27. this is produced during photosynthesis
Down
- 1. when the heat in the atmosphere gets transferred throughtout the planet, making it balanace
- 3. found in volcanic gases
- 7. the layer that absorbs most of the heat that comes off from the sun
- 8. this is produced while fossil fuels are being burned
- 9. the boundary in between the stratosphere and the mesosphere
- 10. used as fuel to make heat and light
- 11. the layer directly above the mesosphere
- 13. big ball of gas that helps heat the earth
- 14. when a certain part of the earth gets way more heat than other parts
- 16. the layer that we live in
- 20. the boundary in between the troposphere and the stratosphere
- 22. has the lowest boiling point of all the elements
- 25. the boundary in between the mesosphere and the thermosphere