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Which Powder is It?
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In this chemistry challenge, learners identify an unknown white powder by comparing it with common household powders.

Plant Power
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In this chemistry challenge, learners identify which plants have the enzyme "catalase" that breaks hydrogen peroxide into water and oxygen.

Hot and Cold
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In this chemistry challenge, learners discover that many chemical reactions involve heat loss or gain.

The Liquid Rainbow
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Learners are challenged to discover the relative densities of colored liquids to create a rainbow pattern in a test tube.

Using Tools and Melting Ice
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In this activity, learners will experiment with different materials that can melt and change ice.

Feather Rockets
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In this activity, learners will make and launch feather rockets. Lerners will use science process skils such as making predictions and measuring while launching the rockets.

Chromatography Observations
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In this activity, learners will explore how water affects marker on filter paper. Learners will use science process skills such as making observations and predictions as they explore color.

Animal Tape Rescue
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In this activity learners will "rescue" animals from tape and then sort the animals. Learners will use science process skills such as categorizing and making observations while they play.

Roller Coasters
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In this activity learners will build roller coasters and test them using small balls or marbles.

Changing Colors
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In this challenge, learners have to figure out in what order to combine five solutions to change the color from clear, to yellow, to blue, and back to clear.

Fruit Juice Mystery
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In this chemistry challenge, learners work to figure out which of four juices are real, and which is just food coloring and sugar.

Finding Red
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In this chemistry challenge, learners systematically investigate which combination of four solutions produces a deep red color.

Finding Colors
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In this chemistry challenge, learners combine acids and bases in a universal indicator to create five different colors.

Disappearing Colors
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In this challenge, learners figure out how to make a juice stain disappear.

Measuring with Flubber
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In this activity learners will measure and manipulate flubber using different tools. Learners will explore volume and make observations about texture and shapes.

Sink or Float
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In this activity, learners will make predictions and experiment with different objects to see if they sink or float.