Across
- 3. wavelengths longer than those of visible light
- 7. longest wavelength electromagnetic wave
- 8. used in a heating appliance in the kitchen
Down
- 1. doctors use to see the skeletal system
- 2. light the small amount of waves a human can see
- 4. spectrum the entire range of light that exists
- 5. ray most energy of all the waves in the electromagnetic spectrum
- 6. shorter wavelengths than visible light