Across
- 3. system - The sun and all the celestial bodies that orbit it
- 6. - Movement of solvent molecules through a semipermeable membrane
- 7. - A community of organisms and their physical environment
- 9. - Variety of plant and animal species in an environment
- 11. - The force that attracts objects towards each other
- 13. - The process of gradual change in species over time
- 14. - Process by which plants convert sunlight into energy
Down
- 1. - Transfer of heat or electricity through a substance
- 2. - Preserved remains or traces of ancient organisms
- 4. - The smallest unit of a chemical element
- 5. energy - Energy possessed by a moving object
- 8. - A subatomic particle with no electric charge
- 10. - Genetic material that carries hereditary information
- 12. - Study of heredity and variation in organisms