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In this introductory activity, learners discover that sugar and food coloring dissolve in water but neither dissolves in oil.

In this engineering activity, challenge learners to build a tower out of 10 sheets of newspaper and 3 feet of masking tape, which can hold a golf ball balancing at the top.

This activity is designed to let learners measure their reaction time or response time to something they see.

In this activity (3rd on the page), learners conduct a series of tests to find out which of their eyes is more dominant.

In this activity (4th on the page), learners conduct a series of tests to find out which of their ears is more dominant.

In this physics activity, challenge learners to make a rubber band-powered spool racer. Demonstrate principles of motion as well as potential and kinetic energy.

In this activity, learners apply a dissolving test to known crystals to identify the unknown. Since the unknown is chemically the same as one of the known crystals, it should dissolve similarly.

In this activity, learners write a secret message in "invisible ink" and then use chemistry to view the writing.

In this activity on page 8 of the PDF, learners make a slimy substance very similar to mucus, and sprinkle it with glitter to imitate the way that allergens are trapped.

In this activity on page 14 of the PDF (Rethinking the 3 R’s: It’s Easy to be Green), learners turn plain pieces of recycled plastic into shrunken works of art.

In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

In this activity, learners construct a home-made journal with simple, everyday materials.

In two separate bags, learners mix water with Epsom salts and detergent.

In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.

In this activity (page 105 of the PDF), learners measure heart rate and blood pressure and learn how to obtain consistent measurements during repeated tests.

In this three-part activity, learners play a game and conduct two simple experiments to explore water and surface tension. Learners will have fun discovering how water "sticks" together.

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

In this activity (11th activity on the page), learners use pennies to test their hearing acuity.

In this health activity, learners create a device so that they not only feel their heartbeat, but also see it, using a straw and some clay.

In this activity, learners investigate static electricity using everyday objects at four different stations.