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In this activity (on page 2 of the PDF), the learner places a golf ball between salt water and colored fresh water. The golf ball is not as dense as the saltwater.

In this activity, learners investigate diffusion by creating underwater "fireworks" using food coloring, oil and water.

In this activity, learners will experiment with density and chemical reactions to create a flurry activity.

In this activity, learners follow a recipe to make hollandaise sauce. Learners discover how cooks use egg yolks to blend oil and water together into a smooth mix.

In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly.

In this activity, learners explore the forces at work in water. Learners experiment to find out what happens to pepper in water when they touch it with bar soap and liquid detergent.

Using two baby food jars, food coloring, and an index card, you'll 'marry' the jars to see how hot water and cold water mix.

In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

In this chemistry activity, learners use yeast and hydrogen peroxide to generate a gas (oxygen) and test some of its properties.

Learners use a commercially available toy to experiment with density. They fill a chamber in the toy submarine with baking powder and release it into a tank of water.

Learners add two dyes to mineral oil and water, and then compare their miscibility (how well they mix) in each.

Investigate the interaction of liquids of different densities and experiment with wave patterns with this hands-on activity.

In this activity, learners mix water, cooking oil, and liquid food coloring to create beautiful colored designs in a cup. Use this activity to explore liquid density and solubility.

The demonstration/experiment provides quick proof that air has mass.

In this quick activity, learners break the tension that happens when water develops a "skin." Learners use water, pepper and some soap to discover the wonders of surface tension—the force that attract

When you teeth clatter, they make quite the racket disproportionately to how much they actually sound to someone else.

In this chemistry activity (on page 2 of the PDF), learners make a layered drink with liquids of different densities.

In this quick activity, learners drink Avogadro's number worth of molecules - 6.02x10^23 molecules!

In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.

In this activity learners will explore the concepts of density and matter in their quest to answer one simple question-will it sink or will it float?