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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.

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

Learners investigate an iron-fortified cereal by stirring it with a strong magnet. They discover that metallic iron is present in some cereals.

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.

In this chemistry activity, learners prepare two petri dishes, one filled with water and one filled with milk.

Learners mix liquid water with solid cornstarch. They investigate the slime produced, which has properties of both a solid and a liquid.

In this hands-on activity, learners explore static electricity through the use of common household products. They also explore the connection between static electricity and cold weather.