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In this activity, learners use sieves with different-sized holes to sort balls by size.

This activity gives caregivers and their children an opportunity to practice scientific ways of thinking that are developmentally appropriate for early learners.

In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.

This activity models some of the ways natural processes, such as erosion and sediment pollution, affect Earth’s landscape.