Across
- 2. Anything falling in the water cycle
- 4. The ability to do work
- 7. How trade and technology made the world a more connected and interdependent place
- 8. A biochemical process through which nitrogen is converted into several chemical form
- 9. Any organism that produces energy
- 10. The ability to continuously maintain a process
- 12. Anything that eats other organsims to survive
- 14. A group of people living in the same place and have a charachtristic in comon
Down
- 1. The introduction o harmful material
- 3. The processes through which the three main rocks form into one anther
- 4. When a liquid forms to gas
- 5. A process in which deep water rises to the surface
- 6. The Branch of biology that deals with organisms and their relations
- 11. A method of procedure that scientists use to observe measure and experiment a hypothesis
- 13. Key used to identify plants and animals
