Across
- 2. a stringed musical instrument often played by angels in art
- 5. tiny sea creatures that build reefs
- 8. a massive, slow-moving river of ice
- 12. a mountain that can erupt with lava
- 13. a black gemstone often used in jewelry
- 16. a giant cloud of gas and dust in space
- 18. a mythical creature with a lion’s body and human head
- 19. a sound that bounces back from surfaces
- 20. a triangular monument built in ancient Egypt
Down
- 1. a green gemstone often used in royal jewelry
- 3. a book of maps
- 4. a feather used as a writing tool in the past
- 6. the path one object takes around another in space
- 7. molten rock that flows from a volcano
- 9. a letter from an ancient alphabet used in magic and inscriptions
- 10. a bird of prey known for its speed
- 11. a ball of ice and rock that leaves a glowing tail in space
- 14. the fourth state of matter, besides solid, liquid, gas
- 15. a type of snake (also a programming language)
- 17. colorful lights in the sky near the poles