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In this optics activity, learners explore how many objects they can see in a set of mirrors (hinged like a book) at various angles.

This activity helps learners understand how the angle of the Sun affects temperatures around the globe.

This activity (8th activity on the page) tests learners' ability to identify things using only the sense of hearing.

In this activity, learners use a compact disc to make a spectrometer, an instrument used to measure properties of light.