Across
- 1. A shiny, solid material that conducts heat and electricity
- 3. An object that attracts certain metals
- 8. Powder that flowers use to reproduce
- 12. The largest planet in our solar system
- 13. The force that pulls objects toward Earth
- 14. The "red planet" in our solar system
- 16. A small animal with six legs and three body parts
- 18. The organ that helps you breathe
- 20. Part of a plant that grows underground
- 21. A group of tiny water droplets floating in the sky
- 23. A tool used to measure temperature
- 26. An animal that eats both plants and meat
- 28. What sound is made from
- 29. Remains of plants or animals from long ago
Down
- 2. Part of a plant where photosynthesis happens
- 4. When a liquid changes to gas
- 5. A liquid made of hydrogen and oxygen
- 6. A state of matter with a fixed shape
- 7. What is needed to do work or cause change
- 8. A dwarf planet once considered the ninth planet
- 9. The star at the center of our solar system
- 10. The organ that helps digest food
- 11. A living thing that uses sunlight to make food
- 15. The largest organ of the human body
- 17. The framework of bones in a body
- 19. The hard part of the body that forms the skeleton
- 22. The smallest unit of matter
- 24. The Earth's natural satellite
- 25. A colorful arc that appears after rain
- 27. They carry messages to and from the brain