Across
- 3. Smallest unit of a chemical element
- 6. Type of rock formed from cooled magma or lava
- 7. Green pigment in plants that absorbs light energy
- 11. Nerve cell that transmits information
- 12. Community of living organisms and their environment
- 14. Liquid water turns into vapor
- 15. Movement of water through a semipermeable membrane
- 16. The study of heredity and the variation of inherited characteristics
Down
- 1. Animal that only eats plants
- 2. Process by which plants make their food using sunlight
- 4. Basic unit of life
- 5. These plates make up the Earth's surface and move over time
- 8. A small body of matter from outer space that enters the Earth's atmosphere
- 9. Mountain that erupts with lava
- 10. The study of stars and planets
- 13. Preserved remains or traces of ancient life