Across
- 2. Tectonics The theory that Earth's outer shell consists of moving plates.
- 4. The force that attracts objects toward each other.
- 7. The breaking down of rocks by weather and environmental factors.
- 9. The natural environment where an organism lives.
- 10. A community of interacting organisms and their environment.
- 12. A characteristic that helps an organism survive.
Down
- 1. Anything that has mass and takes up space.
- 3. A living thing that carries out life processes.
- 5. The ability to do work or cause change.
- 6. A push or pull acting on an object.
- 8. Change A change in matter's form without altering its chemical makeup.
- 11. Change A change that forms new substances with different properties.