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An Ice Lens
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In this optics activity, learners discover basic lens-making techniques by using a tennis ball to make a lens out of ice.
Effects of Solar Radiation on Land and Sea
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In this activity, learners explore the different heating properties of soil and water.
Frozen Fruit
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In this "Sid the Science Kid" activity from Episode 108: My Ice Pops, learners observe reversible change while thinking about ways to make ice melt.
Crystal Painting
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In this activity, learners will "paint" their own crystal artwork by creating a picture with a super saturated salt solution.
Making Metals Strong
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In this activity, learners demonstrate the effects of cold-working (strain-hardening) and annealing. Learners discover that these processes change the load that a wire can support.
A Question of Balance
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In this activity, learners explore how engineers use scales and measures when designing a manufacturing process to ensure that final products are uniform in weight or count.
Canned Heat
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In this activity, learners explore how light and dark colored objects absorb the Sun's radiations at different rates.
Gecko Feet
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This is an activity (located on page 3 of PDF under Gecko Feet Activity) about modeling a nanoscale phenomenon (gravity-defying gecko feet) with macroscale objects (shoes).
Does Your Chewing Gum Lose Its Flavor?
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Each learner chews a piece of gum until it loses its flavor, and then leaves the gum to dry for several days.
Gelatin Optic Fibers
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In this activity, learners make optical fibers out of strips of gelatin.
Apples with Appeal
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In this activity, learners investigate why apples turn brown. Learners discover that lemon juice interferes with the reaction that causes the browning.