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Breathing Machine
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In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.
Hot Stuff!: Creating and Testing for Carbon Dioxide
In this demonstration, learners observe vinegar and baking soda reacting to form carbon dioxide (CO2) gas.
Ocean in a Bottle
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In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.
Reunite Pangaea
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Learners cut out pictures of continents and attempt to put them together to form Pangaea, the supercontinent present on the Earth approximately 300 million years ago.
Melts in Your Bag, Not in Your Hand
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In this activity, learners use chocolate to explore how the Sun transfers heat to the Earth through radiation.
Heavy Air
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In this activity and/or demonstration, learners illustrate visually and physically that air has weight. Learners balance two equally-inflated balloons hanging from string on a yard stick.
Trees: Recorders of Climate Change
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In this activity, learners are introduced to tree rings by examining a cross section of a tree, also known as a “tree cookie.” They discover how tree age can be determined by studying the rings and ho
The Great Fossil Find
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On an imaginary fossil hunt, learners "find" (remove from envelope) paper "fossils" of some unknown creature, only a few at a time.
Constellation Tubes
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In this activity, learners will create their very own constellation.
Lifting Lemon
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In this physics demonstration, learners will be surprised when a lemon slice appears to magically levitate within a pint glass.
Weightless Water
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In this physics activity (page 5 of the PDF), learners will witness the effects of free fall by observing falling water, and will gain a better understanding of the concept of weightlessness.
Making Map Projections
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In this activity about cartography, learners work in teams to create two different map projections: a planar (or polar) and a cylindrical (or Mercator) projection.
Signs of Change: Studying Tree Rings
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In this very hands-on lesson, learners will investigate dendrochronology (the study of tree rings to answer ecological questions about the recent past) and come up with conclusions as to what possible
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.
Fun with Bernoulli
Learners conduct four simple experiments to demonstrate the effects of air pressure.
The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.
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.
Fog Chamber
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In this weather-related activity, learners make a portable cloud in a bottle.
Building a 3-D Space Maze: Escher Staircase
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In this activity (page 95 of the PDF), learners create Escher Staircase models similar to those that were used by Neurolab's Spatial Orientation Team to investigate the processing of information about
Geyser
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This Exploratorium activity can be used in many contexts because geysers are great opportunities for learning about heat and temperature changes as well as geological/space science phenomena.