Across
- 2. positive + negative is a...
- 3. negative plus negative is a...
- 6. cold blooded animals
- 10. Identified and given meaning by people
- 11. Matter that keeps the same volume and changes shape.
- 12. matter that flows through the air
- 13. Keeping the Earth and it's resources for future generations
- 16. Distance around the outside of a shape
Down
- 1. A 90 degree angle
- 4. The distribution of things on Earth
- 5. Warm blooded animals
- 7. Differences in an environment over time.
- 8. Rigid state of matter
- 9. A many-sided shape
- 14. Geographical concept to do with different levels.
- 15. An angle less than 90 degrees