Across
- 4. Something fiery that rises from the bottom of Earth.
- 6. To make an educated guess.
- 7. Something that is very hot or creates heat.
- 9. crust The outer layer of Earth.
- 10. winter An event that makes it hard to find different resources.
- 11. deformation How volcanic activity causes land to shift.
- 15. An extremely large volcano that can change the face of the Earth if it erupts.
- 16. When something like water turns into gas.
- 18. A tool that measures energy waves that are caused by earthquakes.
- 20. A type of crater.
Down
- 1. When a large volcano erupts.
- 2. National Park A place that spans over Wyoming, Idaho, and Montana.
- 3. When something is relatively inactive.
- 5. A negative charged particle.
- 8. microscope Something that uses negatively charged particles.
- 12. record The history of Earth’s layers and fossils.
- 13. spot A column of hot rock and magma rising from deep in the Earth.
- 14. Something that sprays boiling water into the air.
- 17. migration When animals and humans leave a place because of problems.
- 19. A mixture of melted rock, crystals, and dissolved gases.