Across
- 3. core, a dense sphere of solid iron and nickel at the center of the Earth.
- 7. rock, a type of rock that forms from the cooling of molten rock at or below the surface.
- 8. the layer of hot solid material between Earth's crust and core.
- 9. cycle, a series of processes on the surface and inside Earth that slowly changes rocks from one kind to another.
- 10. a solid in which the atoms are arranged in a pattern that repeats again and again.
- 13. the layer of rock that forms Earth's outer surface.
Down
- 1. the process by which atoms are arranges to form a material with a crystal structure.
- 2. a small solid piece of material that come from rocks or remains of organisms.
- 4. rock, a type of rock that forms from an existing rock that is changed by heat pressure or chemical reaction.
- 5. waves, vibrations that travel through Earth carrying the energy released during an earthquake.
- 6. core, a layer of molten iron and nickel that surrounds the inner core of Earth.
- 11. rock, a type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together.
- 12. a naturally occurring solid that can form inorganic processes and that has a crystal structure and a definite chemical composition .