Across
- 5. when the Earth is closest to the Sun.
- 9. hot liquid rock that comes out of the earth through a volcano.
- 10. the part of Earth in the middle of our planet.
- 13. hot fluid rock below the earth's crust from which igneous rock is formed on cooling.
- 14. the decay and disintegration of rocks over time.
- 15. the layer of the earth, lying between the crust and the outer core.
- 16. to burst out suddenly.
- 18. volcano with a gentle slope.
Down
- 1. when the Earth s furthest from the sun.
- 2. underwater mountain
- 3. towering column of gas, ash, and rock fragments ejected from a volcano.
- 4. bending of deeply buried rocks that are heated and compressed over a long period.
- 6. local differences in elevation.
- 7. rock which is rich in iron and magnesium.
- 8. bowl-shaped depression formed by the impact of a meteorite, volcanic activity, or an explosion. Found on the surface of the Earth or on the moon.
- 11. layer or a series of layers of rock in the ground.
- 12. cracks in the Earth’s crust
- 17. how fluid something is.
