Across
- 2. the type of waves that earthquakes make
- 4. idea that the crust moves in pieces
- 7. completely liquid metal
- 9. the largest section of earth
Down
- 1. how much mass per unit of volume
- 3. completely solid metal, under pressure
- 5. made out of solid rocks/minerals
- 6. heat cycled through liquids or gas
- 8. found in the mantle and volcanoes