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Blow It Away
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In this activity, learners design wind-powered cars out of simple household materials. Students have fun designing and then racing their vehicles around the room.
Waterscope Wonders
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In this activity, learners will create a magnifying glass called a waterscope, using water and household items, to examine various objects.
Potion Commotion
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In this hands-on science experiment, students combine their understanding of the different states of matter and the characteristics of various chemical reactions.
Build A Battery
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The Let's Do Chemistry "Build a Battery" activity lets participants learn how batteries work and how materials behave, change, and interact by building their own simple battery out of metal and felt w
Polishing Pennies
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In this experiment, learners try different liquids to see which ones clean pennies best. Liquids to try include water, lemon juice, cola, vinegar, and dishwashing detergent.
Breaking Point
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In this activity, learners build penetrometers to test leaf toughness. Biologists measure leaf toughness to study the feeding preferences of insects and bugs.
Food Webs
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In this activity, learners construct possible food webs for six different ecosystems as they learn about the roles of different kinds of living organisms.
Solve The Fall
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In this twist on a classic design challenge, learners will try to stop a bouncy ball from bouncing as they explore how to control the fall of an object.
Exploring Size: Powers of Ten
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In this activity, learners play a card game that explores the relative sizes of various objects. Learners compete to organize their hand of cards into lists of objects from largest to smallest.
Secret Goldenrod Messages
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In this activity, learners write invisible messages on goldenrod paper, and make the message appear and disappear using acids and bases.
Copper Cleanup
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In this hands-on experiment, kids use chemistry to explore whether acids or bases are better at restoring a penny’s shine.
Scale Model of Sun and Earth
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In this activity, learners explore the relative size of the Sun and Earth as well as the distance between them.
Exploring Size: Memory Game
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In this activity, learners play a card game that explores different size scales--macro, micro and nano.
Spaghetti Strength
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In this activity on page 7 of the PDF, learners explore how engineers characterize building materials.
Headphone Helper
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In this design challenge activity, learners add headphones to a previously built instrument (see "Build a Band" activity) to make it easier to hear.
Sink or Float?
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In this water activity, learners test which objects float and which sink. Learners discover that objects behave differently in water.
Pop Rockets
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In this activity, learners make film canister rocket ships. A fin pattern is glued onto the outside of the canister, and fuel (water and half an antacid tablet) is mixed inside the canister.
Zipline
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In this design activity, learners create a vehicle that can transport a load, like a favorite toy or as a recycled object, from the top of a zipline to the bottom using only gravity.
Print Hints
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In this physical sciences activity, learners explore how forensic investigators collect prints from a crime scene. Learners make hand impressions in damp sand and analyze the patterns they observe.
Drip Drop
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In this water activity, learners explore how water drops behave on different surfaces.