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Invisible Sunblock
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In this activity, learners find out why some mineral sunblock rubs in clear. Learners compare nano and non-nano sunblocks and discover how particle size affects visibility.

Egg-Citing Physics
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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.

Forms of Carbon
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In this activity, educators can demonstrate how the nanoscale arrangement of atoms dramatically impacts a material’s macroscale behavior.

Pollinator Bath
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In this activity, learners will build a design and build a place for pollinators to drink from.

Model Wind Tunnel
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In this activity, learners build a miniature wind tunnel to measure force. Learners construct the model out of Lexan plastic, a fan, and a precise digital scale.
It's A Gas!
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Visitors mix water and sodium bicarbonate (baking soda) in a large flask. They then add citric acid to the mixture and stopper the flask. The resulting reaction creates carbon dioxide gas.

The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.
All Mixed Up!: Separating Mixtures
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Visitors separate a mixture of pebbles, salt crystals, and wood shavings by adding water and pouring the mixture through a strainer.

The Watershed Connection
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In this activity, learners interact with a 3-D model of a watershed to better understand the interconnectedness of terrestrial and aquatic environments.

Supernovae in the Lives of Stars
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Many people think the different stages in the life of a star are actually different types of stars, rather than just stages in the life of a single star.

Thaumatropes
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In this activity, learners will make a thaumatrope, an old-fashioned optical illusion that dates back to the 1820s.

Does the Moon Rotate?
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This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.

Make a Heart Valve
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In this activity, learners make a model of a one-way heart valve to investigate how a heart controls the direction of blood flow.

Building Molecules
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This online interactive has three activities in the NanoLab (press the upper right button): Build, Zoom, and Transform.

What's in Your Blood?
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Doctors often send a sample of blood to a lab, to make sure their patients are healthy.

Solar Convection
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In this activity, learners add food coloring to hot and cold water in order to see how fluids at different temperatures move around in convection currents.

Paper Sculptures
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In this activity, learners manipulate paper to build original 3-dimensional sculptures. Appropriate for any age, learners can use fingers to tear, crumple, or fold, and if available, scissors to cut.

Make Pan Pipes
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This is a simple activity for learners to create a traditional musical instrument. Pan Pipes have developed all over the world in different cultures, from South America to Greece and China.

Shadow Puppets
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In this activity, learners will create their own simple shadow puppets, and experiment with light and shadow while playing with them.

Sink or Float
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In this activity, learners explore and compare the buoyant properties of materials found in nature and in human-made materials.