1. 22. How many feet does food travel in the average adult’s digestive tract? A. 10 feetB. 20 feetC. 30 feet

2. Electromagnetic Waves Notes #22 p. 520

3. 1. ___________________ are produced by charged particles in motion, travel through space, and transfer energy. Electromagnetic waves

4. 2. An electromagnetic wave is composed of two force fields: ___________ field ___________ field magnetic electric

5. Copy and label

6. 3. _____________ - energy carried by an electromagnetic wave Radiant Energy 4. The higher the frequency, the _____ energy the wave has. more 5.Electromagnetic waves travel at the speed of light, ______ km/s. 300,000

7. Section 1 Review p. 524 1-5 Answers only in complete sentences

8. Section 2 Notes Science Book p. 525

9. Draw and label:

10. How can you remember the order???

12. a.radio wavese.x-rays b.ultraviolet wavesf.microwave waves c.gamma raysg.infrared waves d.visible light

13. 23. What type of animal creates this structure on oak trees? A. gall waspsB. monarch butterflies C. hummingbirds

14. Electromagnetic Spectrum Foldable (part of #22)

15. 6. ____________ - have the lowest frequency and least energy; ex. TV signals, AM or FM radio signals

16. 7. ____________ - slightly higher frequency than home radio waves; ex. Transmit phone calls, warm food

17. 8. _______________ - produces heat; used for night vision, pit vipers

18. 9. _______________ - only part of the electromagnetic spectrum that the human eye can see; white light is composed of color (ROYGBIV)

19. 10. ____________________ - has a higher frequency than visible light and can damage cells; sunburn, Vitamin D, cleaning

20. 11. ________ - can go through skin and muscle; check for broken bones

21. 12. _____________ - have the highest frequency and most energy; kill cancer cells, kill bacteria in food

23. 1. Has the highest frequency 2. Has the lowest frequency 3. Can travel through skin and muscle 4. Used by pit vipers to find food 5. Used to heat food evenly 6. The only part humans can see 7. Can damage cells A.Microwave B.Gamma rays C.X-rays D.Radio waves E.Infrared waves F.Ultraviolet radiation G.Visible light

24. Section Review p. 533 1-5 Questions AND Answers

25. 24. Which of the following is not found in the nucleus of an atom? A. Protons B. Neutron C. Electron

26. Science Book p. 535

27. 13. Advantages to using radio waves to communicate: a. ________________________ b. ________________________

28. 14. The radio waves broadcast by a station at its assigned frequency are its _______________.

29. 15. AM and FM are abbreviations for ______________________ and ______________________.

30. 16.________________________ (GPS) uses satellites, ground stations, and portable units to locate things on Earth.

31. 25. Which of the following scientists studies the oceans? A. Oceanographer B. Astronomer C. Meteorologist

32. Electromagnetic Spectrum - BrainPop