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

In this activity, learners use a laser pointer to project a microscopic image of a liquid sample suspended from the tip of a syringe.

When it rains, water can collect on top of and seep into the ground. Water can also run downhill, carrying soil and pollution with it.

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