Across
- 2. - High-energy waves used by doctors to see inside the body.
- 7. Light - The only part of the EM spectrum humans can see.
- 10. - Waves from the sun that can cause sunburns but are invisible to us.
- 13. - Waves used in ovens to heat food and for cell phone signals.
- 14. - The height of the wave; relates to brightness or loudness.
- 15. Waves - The longest waves with the lowest energy, used for broadcasting.
Down
- 1. - The distance between two consecutive peaks or troughs of a wave.
- 3. - How many waves pass a point in one second.
- 4. - EM waves felt as heat; emitted by warm objects.
- 5. - Describes waves that do not need a medium to travel.
- 6. - When light bounces off a surface.
- 8. - A tool that splits white light into its component colors.
- 9. Rays - These EM waves have the highest energy and shortest wavelength.
- 11. - The bending of light as it passes from one medium to another.
- 12. - The full range of electromagnetic waves from low to high energy.