Across
- 5. The opening at the top of a volcano
- 7. A type of lava that is thick and has high viscosity
- 9. A volcanic rock that forms when lava cools quickly
- 10. The name for a volcanic eruption that sends ash, gas, and rock into the air
- 12. Primary waves, are the first waves to arrive at a seismograph(Roy, 2023).
- 14. A type of volcano that is made up of layers of ash and lava
- 17. occur when two tectonic plates move away from each other
- 19. Earth-shaking is caused by a rapid release of energy(Glover, 2023).
- 20. A type of volcano that is steep-sided with a narrow base
Down
- 1. The molten rock beneath the earth's surface
- 2. The location on the earth's surface directly above the epicenter of an earthquake
- 3. A fault that occurs when rocks move horizontally past each other
- 4. A large depression caused by the collapse of a volcanic cone
- 6. The measure of the strength of an earthquake
- 8. A type of lava that is runny and has low viscosity
- 11. A type of volcano that is low, broad, and has gently sloping sides
- 13. The point beneath the earth's surface where an earthquake originates
- 15. The instrument used to detect and measure earthquakes
- 16. A fault that occurs when rocks move vertically past each other
- 18. A type of seismic wave that moves along the earth's surface