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In this activity, learners explore how to protect their skin while applying pesticides to plants.

In this online interactive simulation, learners will add different salts to water and then watch the salts dissolve and achieve a dynamic equilibrium with solid precipitate.

In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.

This activity investigates how bark beetles can threaten forests by having learners estimate the number of infected trees from a photo.

This fun and simple hands-on astronomy activity lets learners explore the difference between telescope magnification and resolution.

This fun and simple hands-on astronomy activity lets learners experiment with marbles and weights to discover some basics about gravity and black holes.

In this fun hands-on activity, learners create a safety device to protect an egg "passenger" in a toy car crash. Learners experiment with different solutions to this very problem.

In this online interactive simulation, learners will test the pH of liquids like coffee, spit, and soap to determine whether each is acidic, basic, or neutral.

In this online activity, learners use a realistic mass and spring laboratory. They hang masses from springs and adjust the spring stiffness and damping.

In this quick activity about predicting (located on page 2 of the PDF under Where's Nano?

In this activity (on page 14 of PDF), learners use a pan full of flour and some rocks to create a moonscape.

In this activity, learners mimic remote sensing. Learners use a stick to measure the distance to a "planet surface" they cannot see, and create their own map of the landscape.

This online interactive has three activities in the NanoLab (press the upper right button): Build, Zoom, and Transform.

In this activity, learners simulate Otto von Guericke's famous Magdeburg Hemispheres experiment.