The energy that comes from the sun is called electromagnetic radiation. This energy is carried by several waves with different wavelengths and frequencies.

The energy that comes from the sun is called electromagnetic radiation.

This energy is carried by several waves with different wavelengths and frequencies.Long wavelength = Low frequencyShort wavelength = High frequency

Higher frequency = more energy

Radio Waves – radio broadcasts Microwaves – cell phones Infrared rays – heat lamps Visible light – what we see Ultraviolet rays – vitamin D X-rays – view bones and teeth Gamma rays – treat cancer

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Visible, white light includes all colors of the rainbow.

ROYGBIV = red, orange, yellow, green, blue, indigo, violet.

The color of an object that we see is the color of light reflected. All other colors are absorbed.

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Wavelength – the distance between the crest (top) of one wave and the crest of the next.

Frequency – the number of waves that pass a given point in a certain amount of time.