Across
- 2. The tough layer of the atmosphere.
- 4. The iron and nickel that creates heat.
- 5. A fluid liquid that is in the mantle.
- 6. A region above the stratosphere.
- 8. The of solar radiation absorbing.
Down
- 1. The earth's outer shell.
- 3. The gad that is released in space.
- 7. The most dense heat in the nickel.