CK-12 Physical Science - For Middle School

21.2. Properties of Electromagnetic Waves http://www.ck12.org Spectrum." What do you think are the longest-wavelength electroma ...

http://www.ck12.org Chapter 21. Electromagnetic Radiation 21.3 The Electromagnetic Spectrum Lesson Objectives Define the electr ...

21.3. The Electromagnetic Spectrum http://www.ck12.org FIGURE 21.6 Electromagnetic radiation from the sun reaches Earth across s ...

http://www.ck12.org Chapter 21. Electromagnetic Radiation Radio Waves Radio wavesare the broad range of electromagnetic waves wi ...

21.3. The Electromagnetic Spectrum http://www.ck12.org Television Television broadcasts also use radio waves. Sounds are encoded ...

http://www.ck12.org Chapter 21. Electromagnetic Radiation FIGURE 21.10 Microwaves are used for cell phones and radar. of differe ...

21.3. The Electromagnetic Spectrum http://www.ck12.org http://www.youtube.com/watch?v=PMtC34pzKGc (4:50) MEDIA Click image to th ...

http://www.ck12.org Chapter 21. Electromagnetic Radiation MEDIA Click image to the left for use the URL below. URL: http://www.c ...

21.3. The Electromagnetic Spectrum http://www.ck12.org FIGURE 21.13 If your skin normally burns in 10 minutes of sun exposure, u ...

http://www.ck12.org Chapter 21. Electromagnetic Radiation KQED: Seeing Cells in 3-D Scientists in Berkeley have developed a powe ...

21.3. The Electromagnetic Spectrum http://www.ck12.org Think Critically Explain two ways that sounds can be encoded in electrom ...

http://www.ck12.org Chapter 21. Electromagnetic Radiation 21.4 References Christopher Auyeung. CK-12 Foundation. CC BY-NC 3.0 C ...

http://www.ck12.org CHAPTER 22 Visible Light Chapter Outline 22.1 The Light We See 22.2 OPTICS 22.3 VISION 22.4 REFERENCES There ...

http://www.ck12.org Chapter 22. Visible Light 22.1 The Light We See Lesson Objectives Identify common sources of visible light. ...

22.1. The Light We See http://www.ck12.org FIGURE 22.1 This classroom has two obvious sources of visible light. Can you identify ...

http://www.ck12.org Chapter 22. Visible Light FIGURE 22.2 Bioluminescent organisms include jelly- fish and fireflies. Jellyfish ...

22.1. The Light We See http://www.ck12.org TABLE22.1:(continued) Type of Light Bulb Description Neon Light A neon light produces ...

http://www.ck12.org Chapter 22. Visible Light the lesson “Optics.” Light may pass through matter. This is calledtransmissionof ...

22.1. The Light We See http://www.ck12.org FIGURE 22.3 The objects pictured here differ in the way light interacts with them. su ...

http://www.ck12.org Chapter 22. Visible Light FIGURE 22.4 The color of light depends on its wave- length. FIGURE 22.5 A prism se ...