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The effects of ultra violet light on perceptionScience project video

Abstract

Much of the universe is undetectable to our five senses, and one of these "phantom phenomena" is light. Our eyes are only able to detect a small segment of the total light spectrum that is produced by the sun. Ultraviolet light is one of many parts of the light spectrum that eludes us. In this science project, you will develop a presentation to show what flowers looks like under ultra violet light.

Objective

Observe the effects of ultraviolet light.

Scientific Terms

Ultraviolet light, electromagnetic field, perception

Background

Light actually consists of a spectrum of light of various wave lengths. Light with the longest wave length has the lowest energy levels, while light with the shortest wave length has the highest energy levels.

Various parts of the electromagnetic spectrum are as follows:

  • Radio waves: Radio waves have the longest waves and make it possible for us to have television, radios, as well as cell phones. Radio waves are invisible to the human eye.
  • Micro waves: Micro waves are invisible to us and have a shorter wave length than radio waves; they are used by microwave ovens and satellites when relaying audio signals through to a cell phone.
  • Infrared light: Infrared light has a shorter wave length than micro waves, and is often used by remote control devices. As infrared can pick up temperature differences, it is used in infrared photography and night vision cameras. Infrared light is invisible to us.
  • Visible light: Visible light is the light spectrum that is detectable to our eyes. Within this spectrum, we are able to detect various wave lengths of visible light: Red, orange, yellow, green, blue, indigo and violet.
  • X-rays: Only gamma rays have a shorter wave length than x-rays, which also means x-rays are only second to gamma rays for having the highest energy levels, which is why they are used by doctors for taking x-rays of our bodies.
  • Gamma rays: Gamma rays have the shortest wavelength and the highest energy level of the electromagnetic spectrum. Because of these qualities, they have been used with x-rays and in killing cancer cells. Gamma rays are generated by nuclear explosions.
  • Ultraviolet light: The topic of this science project, has a shorter wave length than visible light and is invisible to us. We experience ultra violet light?s effects when we get sunburned after spending time outdoors. We are protected from most of the ultraviolet light that is emitted by the sun, by the ozone layer of our atmosphere. Some animals, such as bees, are able to see ultraviolet light.

In this science fair project, you will see a flower the way a bee sees it.

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