Across
- 3. matter that settles to the bottom of a liquid
- 4. the sideways and downward movement of the edge of a plate of the earth's crust into the mantle beneath another plate.
- 6. the gradual movement of the continents across the earth's surface through geological time.
- 8. denoting or relating to rock that has undergone transformation by heat, pressure, or other natural agencies
- 9. rocks that crystallize below the earth's surface
Down
- 1. the structure of the earth's crust.
- 2. a rock that has formed from sediment deposited by water or air.
- 5. where new crust is generated as the plataway from each other.
- 7. places where plates slide sideways past each other.