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In this chemistry activity, learners are asked to form a hypothesis about the behavior of milk as household detergents act upon it.

In this chemistry demonstration, learners investigate the rule "likes dissolve likes" by combining three, immiscible liquids to create a colorful density column.

In this activity, learners will explore the dynamics of air pressure by using a candle, a cup, and a dish of water.

Extract your DNA from your very own cells! First, learners swish salt water in their mouth to collect cheek cells and spit the water into a glass.

In this activity, learners use a tuning fork to explore how the Doppler effect works.

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

In this activity, learners use water, oil, and food coloring to observe a chemical reaction that creates a shower of colors inside of a glass.

In this activity, learners discover that it is difficult to trace a curve by using its reflection in a mirror. Use this activity to discuss how the brain works.

In this activity (4th activity on the page), learners test to see if saliva is necessary for food to have taste.

"Molecules in Motion" explores how materials behave and change in a vacuum.

In this trick, learners discover how to stick a straw to the palm of their hand, window door, or anywhere using static electricity.