Experiment 3: Sunglasses can block out ultraviolet radiation
Wearing sunglasses is a way of protecting your eyes from sun damage.
Experiment sheet (.pdf 182kB)
Aim
To test if sunglasses can block out ultraviolet radiation
Hypothesis
Sunglass lens will stop UV beads changing colour
The independent variable is the sunglass lens, the dependent variable is changing colour.
Materials
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UV beads
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Sunglass lens
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Two small containers
Steps
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Place 6 beads into two small containers
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Cover each with a sunglass lens
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Place the containers outside
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Remove the lens from one container
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Leave for one minute and then compare the colour of the beads
Results
Record your results.
Conclusion
Sunglasses block out some of the ultraviolet light.
Have a look at the photographs of the experiment.
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