Across
- 4. most ____ waves are invisible to the eye but detectable
- 7. sometimes called "heat rays"
- 9. the colour with the longest wavelength in the visible spectrum
- 10. rays carry the highest amount of energy
- 11. infrared and UV rays lie at the end of the ______ spectrum
- 13. property that spells the difference between infrared and UV radiation
Down
- 1. the acronym of ranging detection radio
- 2. UV radiation is used for _____ water
- 3. most EM waves are invisible to the eye but ______
- 4. microwaves can penetrate the atmosphere of the _____
- 5. type of EM waves used in radars
- 6. electric field and magnetic ____ produce electromagnetic wave
- 8. UV _____ carries more energy than the others
- 12. all x-rays are dangerous because they can damage healthy living ____ of the body