Across
- 4. The hardest natural material
- 7. A dwarf planet in our solar system
- 9. An animal that carries its baby in a pouch
- 11. A global network connecting computers
- 12. A dry place with little or no rain
- 13. The gas essential for human breathing
- 15. A drink made from roasted beans
- 16. The author of “Romeo and Juliet”
- 18. A flash of electricity in the sky
- 24. The largest rainforest in the world
- 26. A global sports competition held every four years
- 29. The molecule that carries genetic information
- 30. An arc of colors seen after rain
Down
- 1. A mountain that can erupt with lava
- 2. The force that pulls things toward Earth
- 3. A musical instrument with keys
- 5. A tool used to see very small objects
- 6. A large white bear that lives in the Arctic
- 8. The capital city of the United Kingdom
- 10. The highest mountain on Earth
- 14. A huge system of stars and planets
- 17. A book of maps
- 19. A tool used to clean teeth
- 20. The biggest planet in our solar system
- 21. A device that stores electrical energy
- 22. A yellow metal used for jewelry
- 23. Ancient triangular structure in Egypt
- 25. The scientist who discovered gravity
- 27. A device used to take photos
- 28. The country with the Great Wall