Across
- 3. It comes out of a volcano.
- 8. The name given to liquid rock.
- 9. The centre of an apple and the centre of the Earth.
- 10. When they erupt, lava, smoke and ash comes out.
- 13. A big wave caused by an underwater earthquake.
- 14. There are 7 different ones in the world. The biggest is Asia.
- 15. There was a big one in Uzbekistan in 1966.
- 16. They cover 70% of the Earth's surface.
- 17. You are standing on it right now!
Down
- 1. There are 8 in our Solar System.
- 2. There are lots of different types including gold, silver and steel.
- 4. This force stops you from flying away!
- 5. They can be salty or fresh water and include the Mediterranean and the Dead.
- 6. This metal is in the centre of the Earth.
- 7. There are 198 of them in the world including ours, Uzbekistan.
- 11. Some are so tall, they go through the clouds and are covered in snow.
- 12. This is the bit of the planet where you can breathe.
