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The Wonder of Light a study of the electromagnetic spectrum

The Wonder of Light a study of the electromagnetic spectrum. Mrs. Parker 4 th Grade. Put on your r a i n b o w glasses!. Look around for a few minutes with your special glasses on. Can you see the light separating? . What is light?.

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The Wonder of Light a study of the electromagnetic spectrum

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  1. The Wonder of Lighta study of theelectromagnetic spectrum Mrs. Parker 4th Grade

  2. Put on yourrainbowglasses! Look around for a few minutes with your special glasses on. Can you see the light separating?

  3. What is light?

  4. How does light travel?A) perfectly straight lineB) bends around objectsC) in a circle

  5. Let’s Make Shadow Animals

  6. Electromagnetic SpectrumWe can only see a very small portion (the visible waves) of the Electromagnetic Spectrum.

  7. Radio waves– AM/FM What is your favorite radio station?

  8. Microwave • Infrared Infrared waves are felt as heat.

  9. Where have we heard about Infrared Waves?

  10. Reflection • Reflection occurs when light strikes a surface and bounces off. Light changes direction when it is reflected off a surface.

  11. PRISMS • Take out your prism and try to separate the light. • What are you creating? • Why?

  12. What is a rainbow? • What shape is a rainbow?

  13. The Visible Waves

  14. On the other side of the visible spectrum……. • UV • X Ray • Gamma Ray

  15. Why are sunscreen and sunglasses important?

  16. X rays have many uses in medicine.

  17. High-energy gamma waves are found in radioactive materials used in nuclear power plants.

  18. Electromagnetic Spectrum

  19. Light can travel through fiber optics.Where do we use fiber optics?

  20. Fiber Optics

  21. Have you ever used a laser?

  22. How do we use lasers? Surgeries (LASIK) Price Scanning CD Players DVD Players Dental Drills Heavy Duty/Accurate Cutting Radiation Printer Laser Speed Gun

  23. Let’s Play Tag! • 5 hand held mirrors • 1 laser pointer Light travels in a straight line, but it can reflect! The rays bounce off the mirrors and travel in a new direction.

  24. What do you think would happen to the beads if you put sunscreen on them? Why? Go outside and try it! Create a bracelet made from UV beads

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