Across
- 1. A frequency just below a visible wavelength, used to cook food
- 3. Lowest frequency wave
- 6. Waves that come from the sun and can give you sunburn
- 8. The highest frequency waves
Down
- 2. The range of types and frequencies that a wave can be
- 4. Waves visible to the human eye
- 5. Used to look at the skeletal system
- 7. A lower frequency wave, used to see things based on heat