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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 challenge, learners discover that many chemical reactions involve heat loss or gain.

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

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

Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.

In this quick activity about the properties of water (page 1 of PDF under SciGirls Activity: Malformed Frogs), learners will use an eyedropper to slowly place one drop of water at a time onto a penny,

In this activity, learners test what happens when they put baking power on different frozen liquids.

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

In this simple activity (on page 7 of the PDF), learners use water and liquid dish detergent to see which one removes lipstick better from an index card.