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This simple hands-on activity demonstrates why the sky appears blue on a sunny day and red during sunrise and sunset.

This is an activity (located on page 131 of the PDF) related to sleep and circadian rhythms as well as space travel.

This activity generates learner excitement about light through the creation of a room-sized rainbow.

In this space science activity, learners explore transits and the conditions when a transit may be seen.

In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.

Use this hands-on activity to demonstrate infrared and thermal radiation.