Across
- 1. The start point of an earthquake.
- 3. _______ plates can cause volcanoes and earthquakes.
- 5. The man who explained the reaction series.
- 7. The name of molten rock while inside the ground.
- 8. The intensity scale for earthquakes.
Down
- 2. The instrument used to measure an earthquake's power.
- 4. Molten rock on earth's surface.
- 6. Earthquakes and volcanoes are both _______ disasters.