1. Define Electromagnetic Wave (EM)

2. How do EM Waves form?

3. What is the Source of most EM waves in Earth's environment?

4. What is the transfer of energy in the form of EM waves called?

5. What is the speed that EM Waves travel in a vacuum?

6. What is another name for the constant speed of EM waves in a vacuum?

7. What is the electromagnetic spectrum?

List the different waves in the electromagnetic spectrum in order from longest to shortest.

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15. Which type of EM waves is the most harmful to humans?

16. What is the passage of an EM wave through a medium?

17. What is the disappearance of an EM wave into a medium?

18. How are materials that allow most of the light that strikes to pass through classified?

19. How are materials that transmit some of the light, but also causes some light to spread out in all directions classified?

20. How are materials that do not allow any light to pass through them, because they reflect and/or absorb light classified?

21. What is a way of filtering light so that all of its waves vibrate in the same direction?

List the colors that make up visible light in order

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30. What is the production of light by materials at high temperatures called?

31. What is the production of light by living organisms called?

32. What is light that occurs when a material absorbs EM radiation of one wavelength and gives off EM radiation of a different wavelength?