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Ultra Violet Radiation from the Sun |
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Introduction:
Invisible ultraviolet
radiations from the sun or other sources can cause sunburn, skin
cancer and damage eyes. It is important for us to detect the
presence and strength of UV lights so that we can minimize our
exposure or protect ourselves by using UV filtering eyeglasses and
sunscreen lotions. |
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Material and instructions:
In this project you will compare
the strength of ultraviolet radiation in direct sunlight in different
times of the day. Your project guide will also contain instructions for
testing sunscreen lotions and sunglasses for their ability to filter
harmful UV radiations. To do this project you will use some
UV sensitive beads and other materials such as a clock, pen and
paper that you may already have at home. |
Details of
this project:
This project guide contains the experiment design as well as suggestions
for defining variables and hypothesis. Additional experiments suggested
in this project guide are:
- Compare the strength of
ultraviolet radiation in the shade in different times of the day.
- Test sunglasses for their ability
to filter UV light.
- Test sunblock/ sunscreen lotions
for their effectiveness in blocking UV radiations.
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The "Ultra Violet
Radiation from Sun" is
an experimental science project suitable as a class project or science
fair project for grades 4 to 6. |
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