1. Electromagnetic Spectrum http://ed.ted.com/lessons/how-do-we-study-the-stars- yuan-sen-ting http://ed.ted.com/lessons/how-do-we-study-the-stars- yuan-sen-ting https://www.youtube.com/watch?v=m4t7gTmBK3g https://www.brainpop.com/science/energy/electromagneti cspectrum/ https://www.brainpop.com/science/energy/electromagneti cspectrum/ Electromagnetic Spectrum – Radiation – Frequency – Wavelength –

2. Speed of the Waves All portions of the electromagnetic spectrum travel at the same speed, only the frequency changes the type. The speed of all waves in the EM spectrum is – 186,000 miles per second (speed of light) – 300,000,000 meters per second

5. Gamma Rays X Rays Ultraviolet Visible Light Infared Microwaves Radio waves