Across
- 3. "A large celestial body orbiting a star, like Earth."
- 5. "The process of rocks and soil being worn away by water or wind."
- 7. "The force that pulls objects toward the Earth."
- 8. "To change or adjust to new conditions."
- 11. "The force that resists motion between two surfaces."
- 13. "A gas in the air that humans and animals need to breathe."
- 15. "A branch of mathematics involving variables and equations."
Down
- 1. "The customs, arts, and social behaviors of a group of people."
- 2. "Something that represents an idea or concept, like a flag."
- 4. "The measure of electrical energy in a circuit."
- 6. "A nutrient essential for building and repairing body tissues."
- 9. "The line where the sky seems to meet the land or sea."
- 10. "A conversation between two or more people."
- 12. "A tool used to find directions."
- 14. "A community of living and non-living things in an environment."