Across
- 3. envelope of gases surrounding the earth or another planet.
- 4. thin shell on the outside of Earth, accounting for less than 1% of Earth's volume.
- 6. rocks are types of rock that are formed by the accumulation or deposition of mineral or organic particles at the Earth's surface
- 7. process of wearing or being worn by long exposure to the atmosphere.
- 8. Deep within the Earth it is so hot that some rocks slowly melt and become a thick flowing substance called magma.
Down
- 1. rocks arise from the transformation of existing rock to new types of rock, in a process called metamorphism.
- 2. two blocks of the earth suddenly slip past one another.
- 5. rocks are formed from the solidification of molten rock material.