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In this activity, learners use marshmallows and gum drops to construct seven models of molecules. Learners classify (solid, liquid or gas) and draw diagrams of the molecules.

1 cent - $1 per student Ages 8 - 18 10 to 30 minutes
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In this activity about olfaction (8th activity on the page), learners smell 10 different items with different odors. Then they try to identify the smells when they are mixed together.

$1 - $5 per group Ages 8 - 18 5 to 10 minutes
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This is an activity (located on page 3 of the PDF under Stained Glass Activity) about nanotechnology making its way into everyday products, such as sunscreen, and how effective these invisible particl

$10 - $20 per group Ages 8 - 14 2 to 4 hours
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In this chemistry activity (page 3 of the PDF), learners will learn about crystals by growing their very own.

$1 - $5 per student Ages 6 - 14 1 to 7 days
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In this chemistry activity (page 5 of the PDF), learners will see that chewing is more than just the crushing up of food; there is actually a chemical change going on at the same time.

1 cent - $1 per student Ages 6 - 11 5 to 10 minutes
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In this activity, learners conduct a controlled experiment to examine how temperature will affect the height of a soda geyser.

Over $20 per group Ages 8 - 18 1 to 2 hours
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Using electrolysis, learners produce hydrogen gas and oxygen gas from water molecules in a solution.

$10 - $20 per group Ages 6 - adult Under 5 minutes
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Learners make their own acid-base indicator from red cabbage. They use this indicator to test substances around the house.

$1 - $5 per student Ages 6 - 14 10 to 30 minutes
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In this activity (on page 2 of the PDF), learners (with adult help and supervision) investigate how heat affects polystyrene plastic.

free Ages 6 - 14 10 to 30 minutes
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In this activity, learners use oil, water, food coloring and antacid tablets to create a bubbling lava lamp. Use this activity to introduce concepts related to density, hydrophobicity vs.

$5 - $10 per student Ages 6 - 11 10 to 30 minutes
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During this activity, learners will make different versions of "ooze" using varied proportions of detergent and glue.

$5 - $10 per group Ages 6 - 14 10 to 30 minutes
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Learners observe a bottle containing water and oil. They are invited to pick up the bottle and mix the contents together.

1 cent - $1 per group Ages 6 - 14 5 to 10 minutes
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Learners combine hydrogen peroxide with three different forms of potato: raw chunks, ground chunks, and boiled chunks.

$1 - $5 per group Ages 11 - adult 5 to 10 minutes
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In this activity about the relationship between food and energy (page 5 of PDF), learners conduct an experiment to compare how much energy is released as heat from two different foods.

$1 - $5 per group Ages 8 - 14 45 to 60 minutes
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Learners design their own experiment to investigate how pollution diffuses through ground material.

$1 - $5 per group Ages 11 - 14 30 to 45 minutes
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Learners test solutions of water, sugar, salt, and hydrochloric acid for electrical conductivity. They immerse leads from a lighting device (a battery pack connected to an LED) into each solution.

$1 - $5 per group Ages 14 - adult Under 5 minutes
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In this activity, learners separate materials based on their special properties to mimic the way recyclables are sorted at recycling centers.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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In this activity, learners will create glitter bottles with adult supervision. These are a fun way for little ones to practice observing and making comparisons.

$5 - $10 per student Ages 4 - 8 5 to 10 minutes
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In this activity, learners separate the components of Gatorade using a home-made affinity column.

$10 - $20 per student Ages 11 - 18 45 to 60 minutes
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This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.

$1 - $5 per student Ages 4 - 11 10 to 30 minutes