Across
- 3. An ancient plant still existing today
- 6. Temporarily inactive
- 10. Largest devonian fish also called big daddy
- 11. Most explosive volcanoes
Down
- 1. Liquid rock
- 2. An animal with no backbone
- 4. A blowout from a volcano
- 5. May be diamond in minecraft
- 7. Part of an ancient animal usually dug from ground
- 8. A supercontinent
- 9. A kind of a soil made from dead plants