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

Learners explore their surroundings while reasoning about categories and counting.

In this activity, learners will create an optical illusion top. Learners will explore color mixing, physics and design through this activity.

In this activity, learners explore a scale by comparing objects, which look similar but have different weights. Learners predict and then measure the weights of various objects using a scale.

In this activity, learners create a colorful bookmark using a super thin layer of nail polish on water. Learners discover that a thin film creates iridescent, rainbow colors.

In this activity, learners use clear nail polish to create a beautiful iridescent pattern on black paper. Learners discover that a thin film creates iridescent, rainbow colors.

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.