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The "Rocket Reactions" activity is an exciting way to learn about how materials interact, behave, and change.

This activity uses LEGO® bricks to represent atoms bonding into molecules and crystals. The lesson plan is for a 2.5 hour workshop (or four 45-minute classes).

Many people get water from a source deep underground, called groundwater.

Although we may not admit it, all humans fart or pass some gas. In this activity, learners make their own model to mimic food passing through intestines and discover what releases gas.

In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers.

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

In this activity (pages 42-49), learners discover the methods and challenges of building nanoscale structures with macroscale equipment.