Across
- 4. a mountain/hill that has an opening usually containing lava
- 6. Where two tectonic plate move away for eachother
- 7. A sudden shaking of the ground.
- 8. a mass of snow,ice, and rocks falling rapidly down a mountainside/slide.
- 10. baseline of a slope.
Down
- 1. the scale the tornados are rated on
- 2. a severe snowstorm with high winds and low visibilty
- 3. state where the San Andreas located.
- 5. long term temperatures and different weather changes.
- 9. Scale used to measure volcanos.