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Molecules in Motion
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"Molecules in Motion" explores how materials behave and change in a vacuum.
How Our Environment Affects Color Vision
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In this lab (Activity #1 on page), learners explore how we see color.
Zoom: Travel to a Star and Back to Earth
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This is an online activity about what would happen if we could travel at or near the speed of light.
Unleakable Bag
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In this activity, learners explore the flexibility of polymer chains by pushing sharpened pencils through a Ziploc bag.
Instant Ice Cream with a Dry Ice Bath
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In this chemistry meets cooking activity, learners make carbonated, vanilla ice cream using dry ice and denatured ethanol, which are both inexpensive and accessible.
Bone Stress
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In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.
Dancing Raisins
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In this activity, learners will explore density and it's relationship with mass.
Build Your Own Solar Oven
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Learners follow directions to construct a solar oven that really cooks! The solar oven uses aluminum foil to reflect sunlight into a cooking chamber, which is painted black.
Klutz-Proof Density Column
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Making liquids of different densities to perfectly lay on top of each other can be a frustrating exercise. The Exploratorium created this activity as a fool proof way of making a density column.
Paper Cup Stool
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In this activity, learners will explore how and why weight distribution works.
Personal Fan
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Cool off in the heat with this project! Learners use simple materials to build a fan that runs on a motor.
To Topo Two
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In this activity, two groups of learners create two separate landform models out of clay (mountains and valleys).
Anti-Sound Spring
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What happens when two wave pulses meet in the middle? Send waves down a spring to watch them travel and interact.
Take Out the Trash
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Learners explore how recyclers take advantage of the different properties of materials, such as magnetism and density, to separate them from a mixture.
Circuits with Friends
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In this activity, learners explore the parts of a circuit by modeling, as a group, a “human” circuit.
Leaves: Designing Leaf Arrangements on a Branch
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In this hands-on activity, learners investigate the functional design of leaves on a tree.
Gummy Growth
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In this activity related to Archimedes' Principle, learners use water displacement to compare the volume of an expanded gummy bear with a gummy bear in its original condition.
Rock Bottoms
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Learners add acid rain (nitric acid) to two cups that represent lakes. One cup contains limestone gravel and the other contains granite gravel.
Phantom Phlame
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In this trick, hold your hand over a burning candle without getting burned, by reflecting and transmitting the light of two candles. This activity is best suited as a demonstration.
Simple Machines
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This is an online activity about simple machines. Learners will try their hand at putting these amazing devices to work. They will use several simple machines to help "build" a tree house.