Across
- 2. The point inside the Earth where an earthquake begins
- 7. A plate boundary where plates slide past each other
- 10. The rigid outer layer made up of the crust and upper mantle
- 14. A volcanic mudflow made from ash and water
- 15. A steep-sided volcano formed by layers of ash and lava
- 16. This is a small, steep volcano formed from ash and volcanic fragments
- 19. The semi-molten layer beneath the crust where convection currents occur
- 20. Fragments of rock and ash thrown out during a volcanic eruption
Down
- 1. The point on the Earth’s surface directly above the earthquake focus
- 3. A volcano with gentle slopes and low-viscosity lava
- 4. A volcano that is not currently erupting but may erupt again
- 5. An opening in the Earth’s crust through which magma escapes
- 6. Molten rock beneath the Earth’s surface
- 8. Harmful gases released during a volcanic eruption are said to be this
- 9. Waves of energy released during an earthquake
- 11. A plate boundary where plates move towards each other and subduction occurs
- 12. The solid centre of the Earth made mainly of iron and nickel
- 13. This type of flow is fast-moving, extremely hot flow of gas, ash and rock
- 14. Molten rock that flows on the Earth’s surface
- 17. A plate boundary where tectonic plates move apart
- 18. A scale that measures earthquake magnitude based on energy released