Across
- 2. helps look at layers of soil
- 4. Chewed through Dr. Harris' cables.
- 5. last step in what Mr. Harris does
- 7. means life
- 8. type of scientist who studies how humans and nature interact
- 9. simple tool
Down
- 1. helps measure how hot or cold the air is
- 3. Fossil fuels release carbon dioxide gas into the...
- 5. is natural
- 6. open it to increase air flow