The Beautiful World of LIGHT!!

Spectrum The amount of light we can see is a very small portion of all light.The amount of light we can see is a very small portion of all light. All light (what we can and cannot see) makes up the electromagnetic spectrum.All light (what we can and cannot see) makes up the electromagnetic spectrum. Electromagnetic wave is a fancy way of saying light waves.Electromagnetic wave is a fancy way of saying light waves.

Did You Know? If the electromagnetic spectrum was a window 30 million kilometres long, we would only have to open it three centimeters to let in only the visible light?

The Spectrum

Electromagnetic waves are transverse waves.Electromagnetic waves are transverse waves. Electromagnetic waves do not need a medium, they can travel through the vacuum of space.Electromagnetic waves do not need a medium, they can travel through the vacuum of space.

Radio Waves Radio waves are light waves.Radio waves are light waves. Radio waves have the longest wavelength of all light waves.Radio waves have the longest wavelength of all light waves.

Radio Waves Radio waves have a big range of wavelengths, some are bigger than a football field, some are the size of a loaf of bread.Radio waves have a big range of wavelengths, some are bigger than a football field, some are the size of a loaf of bread. Radio waves can move through your body.Radio waves can move through your body.

Microwave Microwaves are about the size of a bee.Microwaves are about the size of a bee. Used to cook foods, track weather, radarUsed to cook foods, track weather, radar

Infrared Infrared light waves are about the size of the head of a pin.Infrared light waves are about the size of the head of a pin. Every object gives off infrared light.Every object gives off infrared light.

Visible Light The light we see is called visible light.The light we see is called visible light. ROYGBIVROYGBIV Red, longest wavelength, least energyRed, longest wavelength, least energy Violet, short wavelength, tons of energyViolet, short wavelength, tons of energy

Claude Monet painted the picture. He is known as the father of impressionistic art. Impressionist art is based on the use of color, which has to "draw" the motive without resorting to line.

Ultraviolet Ultraviolet (UV) light waves are about the size of a molecule.Ultraviolet (UV) light waves are about the size of a molecule. Causes sunburns, cancer, wrinklesCauses sunburns, cancer, wrinkles Gives our body Vitamin DGives our body Vitamin D

X ray X-rays have very small wavelengthsX-rays have very small wavelengths Used to see bones, teethUsed to see bones, teeth

One of the first ever x-rays

Gamma Rays Gamma rays are the highest energy light waves.Gamma rays are the highest energy light waves. Super tiny wavelengthSuper tiny wavelength