Across
- 3. : Ancient Egyptian triangular structure
- 4. : Nutrient essential for body repair and growth
- 9. : Violent rotating column of air touching the ground
- 14. : Tool used to view very small objects
- 16. : Force that resists motion between two surfaces
- 18. : Process plants use to make food from sunlight
- 20. : Cold-blooded animal with scales
Down
- 1. : Largest planet in our solar system
- 2. : Force that pulls objects toward Earth
- 5. : Land surrounded entirely by water
- 6. : Tool used for finding direction
- 7. : A mountain that erupts with lava
- 8. : One of the seven large landmasses on Earth
- 10. : Tall African mammal with a long neck
- 11. : Basic unit of matter
- 12. : Gas essential for human respiration
- 13. : Source of electrical power
- 15. : Sound reflected back to its source
- 17. : Instrument used to measure temperature
- 19. : When one celestial body blocks another