Across
- 4. eruption A volcanic eruption is when lava and gas are released from a volcano—sometimes explosively
- 5. A tsunami is a series of waves caused by earthquakes
- 6. A tornado is a violently rotating column of air that extends from a thunderstorm to the ground
Down
- 1. A hurricane is a large rotating storm with high speed winds that forms over warm waters in tropical areas
- 2. A flood is an overflow of water onto land
- 3. Huge masses of rock move beneath the Earth's surface and cause the ground to shake