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Learners see that a carrot slice sinks in fresh water and floats in saltwater.

1 cent - $1 per group Ages 8 - 14 10 to 30 minutes
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Learners design their own experiment to investigate whether the temperature of the surrounding water affects the rate at which the colored coating dissolves from an M&M.

$1 - $5 per group Ages 4 - 14 30 to 45 minutes
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In this activity on page 2 of the PDF (Get Cooking With Chemistry), learners conduct chemical tests on certain powders used in cooking.

$10 - $20 per student Ages 8 - 14 45 to 60 minutes
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Learners carefully pour vegetable oil, water, and corn syrup in any order into a cup and discover that regardless of the order they are poured, the liquids arrange themselves in layers the same way.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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Learners mix a variety of substances with red cabbage juice. The juice changes color to indicate whether each substance is an acid or a base.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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In this activity, learners heat and cool carbonated water to find out whether temperature has an effect on how fast the dissolved gas leaves carbonated water.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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Learners use their knowledge of color changes with red cabbage indicator to neutralize an acidic solution with a base and then neutralize a basic solution with an acid.

1 cent - $1 per group Ages 6 - 14 10 to 30 minutes
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Learners design their own experiment to determine which M&M color dissolves the fastest in water.

$1 - $5 per group Ages 6 - 14 30 to 45 minutes
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In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.

$1 - $5 per student Ages 8 - 14 10 to 30 minutes
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In this activity, learners design a crushing test and discover that identifying and controlling the variables may be difficult.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes
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In this activity, learners investigate whether having sugar already dissolved in water affects the speed of dissolving and the movement of sugar and color through the water.

$1 - $5 per group Ages 8 - 14 30 to 45 minutes
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Learners see that a can of regular cola sinks while a can of diet cola floats. As a demonstration, bubble wrap is taped to the can of regular cola to make it float.

$1 - $5 per group Ages 8 - 14 10 to 30 minutes