Mountains and Rocks

4. A rock that is made of sediments that have been naturally compacted and cemented together.
5. Melted rock in Earth's mantle.
10. To stick out or swell.
11. Mountains generally formed when magma pushes upward into Earth's crust from the mantle and cools into igneous rock underground, causing the crust above it to bulge; usually occur as isolated mountains on otherwise flat plains.
16. Earth's outermost layer, featuring a rocky surface.
18. A rock that forms when magma cools and solidifies.
19. A theory that Earth's crust and the solid top part of the mantle are broken up into sections that fit together but move against each other.
20. very steep, almost straight up and down.

1. To closely pack or press together.
2. A rock that forms when minerals in igneous, sedimentary, or older metamorphic rocks are changed due to extreme heat and pressure.
3. Mountains formed when rocks are pushed up into huge folds by moving tectonic plates.
6. To crash together with strong force.
7. A scientist who studies the makeup of the earth and the forces and processes that shape and change it.
8. The average height of the ocean's surface.
9. To put or leave something in a particular place.
12. A crack in the Earth's crust.
13. A large area in the earth that is lower than the area around it.
14. Very small.
15. Mountains formed when gigantic blocks of rock move up and down along faults.
17. Mixed with liquid so no solid pieces are visible anymore.