Across
- 4. the bones go through...
- 6. abbreviation - cu
- 7. abbreviation - mg
- 8. The rocks get hot then crumbles at night
- 10. when the rock changes from sedimentary to...
- 13. the effect of the heat being trapped in the atmosphere
Down
- 1. the tree .... back into the air
- 2. warming of the earth
- 3. abbreviation - zn
- 5. abbreviation - fe
- 6. the fossil fuels...
- 9. the gaseous air around us
- 11. abbreviation - k
- 12. the trees are cut down in large amounts
- 14. the rock before it changes to metamorphic