Across
- 2. The full form of the element Kr
- 5. All water found on, under and over the surface of the Earth
- 6. The solid Earth
- 7. Water forming water vapour from sunlight
- 9. In the soil, decomposers break down dead plants in the carbon cycle. =
Down
- 1. The gases that surround Earth
- 3. All life on Earth
- 4. When plants and animals release carbon dioxide into the atmosphere in the carbon cycle.
- 5. The full form of the element He
- 8. The full form of the element Ne
