electromagnetic spectrum ?

what are some items that i could bring into science class that are examples of EMS i need some things that i can bring in and also just put on a peice of paper and print out..............ASAP! plz

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    You should bring something that emmits a certain wavelength found in the electromagnetic spectrum.

    Such things could be:

    1)Flash light: (visible light), wavelength = 400nm - 700nm

    2)Radio: (Radio waves)

    3)mobile phone: (Radio Waves)

    4)TV remote: (Infrared)

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