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In this international citizen science activity, learners measure their night sky brightness and submit their observations into an online database.

In this outdoor activity, learners explore UV rays from the Sun and ways to protect against these potentially harmful rays.

In this physics activity (page 6 of the PDF), learners will demonstrate air has weight by comparing an inflated balloon to a deflated one.

In this activity, learners turn empty 2-liter bottles into a see-through compost container.

“Exploring Earth: Investigating Clouds” is a hands-on activity in which visitors create a cloud in a bottle and explore it with laser light.

In this activity about the solar system, learners use various light sources to examine ice with different components to understand how NASA studies planets and moons from space.

This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.