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This is a quick activity (located on page 2 of the PDF under Nasturtium Leaves Activity) about surface tension.

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 physical activity, two lines of learners link hands and arms to model a beam subject to various loading schemes.

In this activity (located on pages 9-14 of PDF), learners visit a cemetery to examine the distinguishing characteristics of rock weathering.

This quiz lets you estimate your annual radiation exposure.

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 activity, learners will plot the distribution of various oozes using information from sediment maps.

In this activity, learners create models of ionic compounds and observe the chemical formula of binary molecules they have created.

In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.

In this online activity, learners experience the thrill of pickle making, and explore how a cucumber becomes a pickle.

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

In this activity, learners balance chemical equations and discover the law of conservation of mass. Learners use coins to model molecules to balance the equations.

This is a quick game about self-assembly (page 2 of PDF under Self-Assembly Activity). Like the molecules of DNA, learners will self-assemble into a pattern by following a simple set of rules.