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Periscope
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In this activity, learners construct a device that allows them to look over ledges or around corners.

Does it Stick?
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In this activity, learners will observe magnetic properties and sort objects by them. This activity uses everyday items to teach learners about magnetic forces, poles and properties of magnets.

Wonderful Weather
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In this activity, learners conduct three experiments to examine temperature, the different stages of the water cycle, and how convection creates wind.

Plastic Milk: You can make plastic from milk
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In this activity (on page 2 of the PDF), learners make a plastic protein polymer from milk. Adding vinegar to milk causes the protein casein to solidify or curdle.

Energetic Water
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In this activity, learners explore how hot and cold water move. Learners observe that temperature and density affect how liquids rise and fall.

Invisible Ink
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In this hands-on activity (on page 2 of the PDF), learners experiment with lemon juice and paper to create a message that can only be revealed using chemistry.

Metallophone
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In this activity, learners explore sound by constructing an instrument using some metal pipes, rubber bands, and a baseboard.

Draggin' Boats
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Learners design, build, and test models of "dragon boats" made from up to three milk cartons.

Puff Mobile
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In this engineering activity, challenge learners to design a car using only 3 straws, 4 Lifesavers™, 1 piece of paper, 2 paper clips, tape, and scissors.

How Many Pennies?
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In this math activity, learners pretend there is a special store that lets you pay for toys by their weight in pennies.

Go with the Flow
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In this quick and easy activity and/or demonstration, learners use two empty soda cans to illustrate Bernoulli's principle.

Pipes of Pan
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Create an instrument that you don't play--you just listen to it through tubes of various lengths.

Magnetic Lines of Force
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With a magnet, iron fillings, and a bottle, you can create a cool demonstration about magnetic lines of force: the fillings will arrange themselves within the magnet's magnetic field.

DIY Weather Vane
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In this activity, learners will engineer their own weather vane. This activity includes step-by-step instructions with pictures and a "What's Happening?" section explaining how the activity worked.

Color Table: Color your perception
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Look at pictures through different color filters and you'll see them in a new way. People have used color filters in beautiful photography or sending secret messages.

Spinning Tops
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Create your own spinning top, and explore color, shapes and spinning. This activity contains instructions for making your spinning top, and tips on how to design and decorate it.

Prepare for a Dock Shop Field Trip
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In this activity, learners explore what makes a boat float and sink. They examine and test various objects to determine why objects float or sink.

Liquid Lava Layers
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In this activity, learners explore the concepts of density and basic chemical reactions as they create a homemade lava lamp effect using water, oil, food coloring, and Alka-Seltzer tablets.

Coffee-Can Cuíca
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Make a cuíca (“kwee-ka”), a traditional Brazilian musical instrument that originated in Africa. Played primarily in Brazil, now you can play it at home, too, with this Exploratorium produced activity.

Good Vibrations
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In this activity, learners create a sound visualizer from common materials to help see the vibrations created by sound. Sounds from a tone generator make salt dance on a vibrating balloon membrane.