Across
- 5. melted rock beneath the earth's surface
- 6. a black/gray/white/pink speckled volcanic rock
Down
- 1. melted rock that emerges at or above the earth's surface
- 2. a glossy black rock formed when lava cools quickly
- 3. a bubbly-looking volcanic rock that floats
- 4. the type of rock that is made from magma/volcanic rock