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Dripping Wet or Dry as a Bone?
Learners investigate the concept of humidity by using a dry and wet sponge as a model. They determine a model for 100% humidity, a sponge saturated with water.
A Model Parasite
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In this detailed activity (on pages 9-18), learners investigate the body parts of a parasitic ascaris worm by making and dissecting clay models.
Soap-Film Painting
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Make a big canvas of iridescent color with pvc pipe! In this Exploratorium Science Snack, you'll need to cut and assemble some PVC pipe, but the pay-off, the soap-bubble canvas, is big.
Making Vocal Cords
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In this activity, learners imitate the way vocal cords work by building a model from a plastic cup, rubber band, and a straw.
A Merry-Go-Round for Dirty Air
Learners build a model of a pollution control device--a cyclone. A cyclone works by whirling the polluted air in a circle and accumulating particles on the edges of the container.
The Heart as a Pump
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Learners will build a homemade pump using a balloon, a mason jar, and some straws.
Lub Dub: Make a Heart Valve
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Learners will construct a model of a heart valve using a film canister, a piece of masking tape, and a piece of paper.
Lung Model: Make a Lung and Diaphragm
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By building a model of a lung and diaphragm, learners discover the function of various parts of the body's respiratory system.