A simple explanation of light on the Ducksters website.
A far more wordy explanation of light on ‘Explain that Stuff’. It covers wave-particle duality, reflection, refraction, diffraction and even ventures into discussing atomic energy levels (although I don’t like their diagram for this part).
How humans and other animals see light
Watch this Minute Physics video about how we see light
If you are not completely fed up with the black and blue/white and gold dress, or if you do not use any kind of social media and somehow missed the whole thing, AsapSCIENCE have an explanation for you
Pinhole cameras and Camera Obscura
In our classes we made a great pinhole camera from Pringles tubes, using these instructions from the Exploratorium in San Francisco, which also include a short explanation of what is happening.
My children now want to make a walk-in camera obscura. If you get a chance to walk into a room-sized Camera Obscura please take it!
Watch this video of corals fluorescing under actinic lights.
Read this Kids.Net.au explanation of fluorescence.
If you can cope with the strange voiceover, this video from Nurd Rage explaining fluorescence is great and has better energy-level diagrams than the ‘Explain that Stuff’ page I linked to before.
Watch Hank on SciShow talk about radiation (which might not mean what you think it means).
Reflection and refraction
Watch Bill Nye explaining refraction
or watch this Minute Physics video about the speed of light in glass
360 degree periscope instructions from the Science Museum in London.
Why is the sky blue?
Is the sky blue?
Read about one linguist’s investigation into how language shapes the way we see our world.
If you, or your children, want to understand how lasers work there is a clear and elegant explanation here on the NASA Spaceplace website. (R)
The maze we used in class is this one produced by ThinkFun.
A few links about laser safety (laser pointers and laser shows)
More activities related to light
For more activities related to light see Optics4Kids
and watch this video about how modern light bulbs work