Across
- 3. A boundary where plates collide, forming mountains, trenches, or volcanoes.
- 6. Rock formed from layers of sediment pressed together over time.
- 7. Movement caused by heat; hot material rises, cool material sinks.
Down
- 1. Rock formed when existing rock changes due to heat and pressure.
- 2. Rock formed when magma or lava cools and hardens.
- 4. A boundary where plates slide past each other, causing earthquakes.
- 5. A boundary where plates move apart, creating new crust.