1. EM Spectrum Notes

2. Sun’s energy comes to Earth by radiation
Most of the energy from the Sun is Infrared radiation, visible light, or ultraviolet radiation.

3. The Electromagnetic Spectrum

4. A good way to remember this is…
Rabbits Meet In Very Unusual eXpensive Gardens

5. Radio Waves
Carry Radio, TV, Computer signals
Weakest, least dangerous

6. Microwaves
Microwave ovens, cell phones, radar

7. Infrared Waves
“Pure” heat, Heat lamps, remote controls, some photography
***Most of the Sun’s energy

8. Visible Light What you can see
White light – “Pure” light, contains all other colors
Colors - Roy G. Biv (red, orange, yellow, green, blue, indigo, violet)

9. Ultraviolet Some helps skin produce vitamin D
Too much causes eye damage, sunburn, & skin cancer

10. X-Ray
Used to view bones/teeth
Can cause cancer in high amounts

11. Gamma Ray Nuclear Radiation Can cause radiation poisoning,
cancer, death

12. The electromagnetic spectrum can help scientists view space by allowing them to see other types of energy that would be invisible with a regular telescope.

13. Regular Saturn – Saturn in UV Light

14. What our galaxy looks like…
With your eyes or telescope
infrared
radio
X-ray
gamma ray