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As a long-term project, you can rear monarch butterflies at home or in a classroom.

$5 - $10 per group Ages 6 - adult 1 to 12 months
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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 activity about osmosis, learners use a naked egg (one with a dissolved eggshell) to learn about selectively permeable membranes.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this science trick, learners get an egg to stand-up on its long-axis vertical to a table's top.

1 cent - $1 per student Ages 8 - 18 5 to 10 minutes
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This is an activity about friction as well as kinetic and potential energy.

1 cent - $1 per student Ages 11 - 18 10 to 30 minutes
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In this outdoor activity, learners find the swollen bumps known as "galls" on various plants and get a closeup look at the parasitic animals living inside.

$5 - $10 per group Ages 8 - 18 45 to 60 minutes
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This is an activity about acid-base reactions using eggs and vinegar. Learners place eggs inside a container of vinegar and leave to soak overnight.

1 cent - $1 per group Ages 11 - 18 10 to 30 minutes