Across
- 5. Boundary, Plates that grind past each other.
- 6. A split or break in something.
- 8. Tectonics, A theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
- 9. Boundary, Two plates moving towards each other.
- 10. Hot fluid or semifluid material below or within the earth's crust from which lava and other igneous rock is formed on cooling.
Down
- 1. Current, Flowing fluid that is moving because there is a temperature or density difference within the material.
- 2. Boundary, Two plates moving away from each other.
- 3. A dark volcanic rock that sometimes displays a columnar structure.
- 4. The mostly-solid bulk of Earth's interior.
- 7. the outermost shell of a terrestrial planet.