Across
- 3. gases in the earth's atmosphere that trap heat, causes the greenhouse effect
- 4. a material applied to soil to supply plant nutrients
- 7. machine that shoots rays into a person's body to produce images of their body
- 8. uses magnetic fields to generate images of organs
- 10. uses principles of biology and engineering to create usable products
Down
- 1. small device implanted into the chest to help control heartbeat
- 2. substances made to control pests
- 5. use of scientific principles to build structures
- 6. electromechanical device that replaces function of a human's arm
- 9. the study of life