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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.
Plastics the Second Time Around
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In this activity, learners test and compare the physical properties of thermoplastic polymers. Learners compare different plastics based on their color, degree of transparency, texture, and density.
Don't Throw it in the Garbage
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In this activity, learners discover why only some types of plastic can be recycled.
Stretching Wires
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In this activity, learners determine the elastic and plastic properties of different types of metal wires.