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Learners explore the relationship between energy consumption, population, and carbon emissions in the countries of the Americas.

In this hands-on activity, learners discover the similarities and differences between a vertebrate and invertebrate by dissecting a perch and a crawfish.

Scientists use enormous wind tunnels to test the design of planes, helicopters, even the Space Shuttle.

This activity was designed for blind learners, but all types of learners can use it to learn to differentiate between qualitative and quantitative observations and to practice data collection.

In two separate bags, learners mix water with Epsom salts and detergent.

In this math lesson, learners explore and investigate measurement using standard and non-standard units.

This is an activity about friction as well as kinetic and potential energy.

In this earth science activity (page 14 of the PDF), learners use layers of closed-cell foam to create their own model of the mid-ocean ridge in order to simulate seafloor spreading.

In this chemistry activity, learners will separate a mixture of FD&C dyes (colors certified and allowed by the US for the Food, Pharmaceutical, Cosmetics & Personal Care industry) to practice

In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.

In this activity, learners of all ages can become food scientists by experimenting with flour and water to make basic pasta.

In this activity, learners work in teams to construct human lung models from small plastic beverage bottles and balloons.

Electrolysis is the breakdown of water into hydrogen and oxygen. This Exploratorium activity allows learners to visualize the process with an acid-based indicator.

In this activity, learners act as epidemiologists by mapping the prevalence of HIV/AIDS worldwide.

Put on a pair of gloves and be the conductor of your invisible orchestra!

In this environmental health activity, learners investigate their own vital lung capacities.

In this yummy earth science activity (page 5 of the PDF), learners use fudge to learn about different kinds of lava.

In this activity, learners mix ingredients in a plastic bag, and then identify three characteristics of a chemical reaction: production of heat, color change, and production of a gas.

Some animals can swallow food whole, but humans have to chew. In this activity, learners will investigate what saliva does chemically to food before we even swallow.

In some parts of the world, lakes freeze during winter. In this activity learners will explore water’s unique properties of freezing and melting, and how these relate to density and temperature.