Minerals and Rocks-Topic 5
Across
- 3. facts or information to help determine if something is valid or true
- 6. small solid pieces of material that come from rocks or the remains of organisms; earth minerals deposited by erosion
- 8. the layer of hot solid material between Earth’s crust and core
- 9. a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together
- 11. a dense sphere of solid iron and nickel at the center of Earth
- 12. a naturally occurring solid that has a crystal structure
- 13. the layer of rock that forms Earth’s outer surface
- 14. cycle that is a series of processes on the surface and inside Earth that slowly changes rocks from one kind to another
Down
- 1. a layer of molten iron and nickel that surrounds the inner core of Earth
- 2. a type of rock that forms from an existing rock that is changed by heat, pressure, or chemical reactions (coal into diamond)
- 4. more than one hundred substances that cannot be broken down further
- 5. vibrations that travel through Earth carrying the energy released during an earthquake
- 7. a type of rock that forms from the cooling of molten rock at or below the surface
- 10. a solid in which the atoms are arranged in a pattern that repeats