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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.
Crunch and Munch Lab
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In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers.
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.
What's the Matter
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In this activity, learners identify different classes of matter based on physical properties.