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In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

In this activity, learners create a straw oboe to explore sound and pitch.

In this online activity, learners make a whole rainbow by mixing red, green, and blue light. They can change the wavelength of a monochromatic beam or they can filter white light.

In this activity, learners use simple materials to simulate the effect of X-rays in a safe way. Learners place a piece of window screen over a box and a cardboard pattern on top of the screen.

In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.

The beautiful iridescent colors of a bubble in a can! With this Exploratorium Science Snack, create beautiful soap films on the open end of a can to see beautiful rainbows of color.

In this activity, learners use gelatin as a lens to investigate the properties of laser light.