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Competency #9

• Compare and contrast the nature of sound and light...

External links:

Waves:

• http://earthguide.ucsd.edu/wav/index.html
• http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/wavestoc.html

Transverse and longitudinal waves:

• http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/u10l1c.html
• http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/u10l2a.html

Frequency and period:

• http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/u10l2b.html

Reflection, refraction, and diffraction:

• http://www.glenbrook.k12.il.us/gbssci/phys/Class/waves/u10l3b.html

Electromagnetic spectrum:

• http://academia.hixie.ch/bath/em/home.html

Why is the sky blue:

• http://www.sciencemadesimple.com/sky_blue.html

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