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  • Stage 1

    Answer 4 out of 5 questions correctly.

Have you ever had a sun tan or a sunburn? If you have, then you've experienced ultraviolet
waves,
also known as UV waves. They are a type of electromagnetic wave. We cannot see UV waves, but they are all around us. UV waves can be used to dry gel nail polish and destroy bacteria. They can also cause skin damage.
This model shows different types of electromagnetic waves.
Complete the sentence.
Compared to visible light waves, ultraviolet waves have  wavelengths, have  frequencies, and carry  energy. 
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