Across
- 6. – A violent rotating column of air.
- 7. – Natural glow from deep-sea creatures.
- 10. – A sudden flash of electricity in the sky.
- 12. Triangle – A place where ships and planes mysteriously vanish.
- 13. – Remains of ancient creatures turned into rock.
- 16. – Colorful lights that dance in polar skies.
- 17. – When one space object hides another.
- 19. – A spinning water current.
- 20. – A colorful arc formed after rain.
Down
- 1. – A giant single stone.
- 2. – Space object with a glowing tail.
- 3. – A rock burning through Earth’s atmosphere.[shooting stars]
- 4. – A mountain that erupts with lava.
- 5. – A ground collapse that forms a deep hole.
- 8. Sea – The dark, unexplored part of the ocean.
- 9. – Slow-moving river of ice.
- 11. – A giant sea wave caused by an earthquake.
- 14. Cave – Caves filled with giant sparkling minerals.
- 15. – A natural hollow in the Earth.
- 18. – Remains of ancient creatures turned into rock.