Across
- 2. Body system that breaks down food
- 4. Body system that controls movement
- 7. Organism that only eats plants
- 9. Force that slows down an object when it moves
- 11. Air pressure that causes cloudy, rainy weather
- 12. Body system that produces new blood cells
- 13. Nonliving factor in an ecosystem
- 15. Organism that eats other organisms for energy
- 18. Part of the water cycle that occurs when heat energy is gained
- 19. Living factor in an ecosystem
- 20. Ecosystem that contains both fresh and salt water
Down
- 1. Organism that gets its energy from the sun
- 3. Type of change that keeps its original properties
- 5. Organism that only eats other animals
- 6. Part of the water cycle that occurs when heat energy is lost
- 8. Air pressure that causes sunny, clear weather
- 10. Warm ocean current that keeps coastal areas warmer in the winter
- 14. Type of change that produces a new substance
- 16. Force that pulls an object down towards the ground
- 17. Organism that breaks down food and puts nutrients back into the soil