Across
- 3. slow-moving river of ice
- 4. the top layer on the surface of the Earth
- 7. molten rock, called lava when it reaches Earth's surface
- 9. an explosion or outburst because of pressure
- 11. the breaking-down of rocks or soil from wind, water, and ice
- 12. of a kind or degree that is much beyond what is average or normal
Down
- 1. layers of rock
- 2. a safe place away from danger or elements of weather
- 5. hardly; slightly; by only a little bit
- 6. large sections of the Earth's crust
- 8. cracks in the Earth's crust where lava comes out
- 10. pile of broken boulders, rocks, and soil at the bottom of a mountain