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In this chemistry investigation, learners combine common cooking substances (flour, baking powder, sugar, salt, pepper, oil, water, food coloring) to explore mixtures.

$10 - $20 per student Ages 4 - 8 10 to 30 minutes
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In this activity, learners are challenged, using everyday objects, to create simple machines to complete specific tasks.

$5 - $10 per group Ages 6 - 14 45 to 60 minutes
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This activity puts a mathematical twist on the familiar “guessing jar.” No guesses allowed, estimates only.

1 cent - $1 per group Ages 4 - 14 5 to 10 minutes
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In this activity, learners look at and touch marine animal skulls to compare them and think about what they eat.

$10 - $20 per group Ages 4 - adult 10 to 30 minutes
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In this quick and easy activity and/or demonstration, learners illustrate the effect of the weight of air over our heads.

free Ages 6 - 18 Under 5 minutes
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In this activity, challenge learners to design a roller coaster ride for a marble using cardboard and other simple materials.

$1 - $5 per student Ages 6 - 11 30 to 45 minutes
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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 build a seesaw powered by magnets.

$1 - $5 per student Ages 6 - 14 30 to 45 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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In this activity, learners build mini catapults using paint paddles and a spoon. Use this activity to introduce learners to forces and projectile motion.

$1 - $5 per student Ages 6 - 18 10 to 30 minutes
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In this activity, learners explore moving air and the physics of lift and drag by constructing homemade wind tunnels.

$10 - $20 per group Ages 6 - 11 1 to 2 hours
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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 play a trick on their own brain to see if the brain can learn to ignore distracting input. Colors and words are used to play the visual trick, known as a Stroop Test.

1 cent - $1 per group Ages 6 - 11 10 to 30 minutes
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In this two-part activity, learners explore the Earth and Sun's positions in relation to the constellations of the ecliptic with a small model.

1 cent - $1 per group Ages 4 - 18 1 to 2 hours
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In this physics activity, challenge learners to remove the bottom coin of a stack of nickels without knocking over the stack. Use this activity to demonstrate friction.

free Ages 6 - 11 Under 5 minutes
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In this activity, learners make a helium balloon "flink"--neither float away nor sink to the ground. Use this activity to introduce physics concepts related to gravity, density, and weight.

$1 - $5 per student Ages 6 - 11 10 to 30 minutes
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Coins are everyday objects which tell a lot about the people who use them.

1 cent - $1 per student Ages 6 - 14 10 to 30 minutes
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In this activity, learners will explore how and why weight distribution works.

$1 - $5 per group Ages 4 - adult 10 to 30 minutes
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In this activity, learners will put a set of containers in order by capacity. Would the tallest container hold more or less water than the wide, short one?

free Ages 4 - 14 5 to 10 minutes