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In this nutrition activity (page 3 of the PDF), learners will record their food consumption for one day, and then evaluate how their actual diet matched up with the recommended diet.

free Ages 6 - 18 1 to 7 days
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In this activity, learners of all ages can become food scientists by experimenting with flour and water to make basic pasta.

$1 - $5 per group Ages 4 - adult 45 to 60 minutes
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In this demonstration, adult learners create a lava lamp using beer and nuts! Use this pub-themed activity to demonstrate the effects of buoyancy and bubbles.

$1 - $5 per group Ages 4 - adult Under 5 minutes
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In this activity (last activity on the page), learners make a model of the eardrum (also called the "tympanic membrane") and see how sound travels through the air.

1 cent - $1 per student Ages 6 - 18 5 to 10 minutes
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In this activity, learners make their own rock candy. Crystals will grow from a piece of string hanging in a cup of sugar water. The edible crystals may take up to a week to form.

1 cent - $1 per student Ages 6 - 18 1 to 7 days
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In this physics demonstration, learners are challenged to insert a straw the furthest into a potato.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this demonstration, learners observe the effects of air pressure. They will watch as marshmallows inside a bottle expand as a vacuum pump removes air from the bottle.

$1 - $5 per group Ages 4 - adult Under 5 minutes
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In this activity, learners create a gelatinous slime using guar gum powder and borax. Educators can use this simple activity to introduce learners to colloids.

$10 - $20 per group Ages 6 - 18 30 to 45 minutes
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In this physics demonstration, learners are challenged to break a raw egg just by squeezing it. Learners will be shocked by their inability to complete the deceivingly simple challenge.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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In this activity, learners examine their tongue and taste buds.

1 cent - $1 per student Ages 6 - 18 Under 5 minutes
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In this chemistry activity, learners use spaghetti to explore density and chemical reactions.

$1 - $5 per group Ages 6 - 18 5 to 10 minutes
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In this activity, learners transform everyday milk into small plastic figurines and jewelry. Use this activity to introduce learners to monomers and polymers.

$1 - $5 per student Ages 6 - 18 30 to 45 minutes
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In this demonstration about momentum, use physics to distinguish between a hard-boiled egg and a raw egg without cracking them open.

1 cent - $1 per group Ages 4 - adult Under 5 minutes
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In this outdoor activity, learners investigate spider webs and feeding behavior, particularly how spiders trap food in their sticky silk webs while not getting stuck themselves.

$5 - $10 per group Ages 6 - 18 45 to 60 minutes
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In this chemistry activity, learners use the lowered freezing point of water to chill another mixture (ice cream) to the solid state.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this chemistry demonstration, learners investigate the rule "likes dissolve likes" by combining three, immiscible liquids to create a colorful density column.

$1 - $5 per group Ages 6 - 18 Under 5 minutes
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In this activity, learners use chemistry to “self-assemble” gummy shapes. Learners discover that self-assembly is a process by which molecules and cells form themselves into functional structures.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.

$1 - $5 per group Ages 4 - adult 5 to 10 minutes
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In this activity, learners explore deoxyribonucleic acid (DNA), a nanoscale structure that occurs in nature.

Over $20 per group Ages 6 - adult 10 to 30 minutes
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In this activity, learners explore chemistry and the microbial world by making their own sourdough starter and bread at home using only flour and water.

$1 - $5 per student Ages 6 - adult 1 to 7 days