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    University of Illinois Urbana-Champaign
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    In this activity, learners investigate the basic crystal structures that metal atoms form. Learners construct models of crystals using Styrofoam balls and learn about hexagonal close packing (HCP)...

    $5 - $10 per student Ages 14 - adult 45 to 60 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners use pop-beads to understand the characteristics and properties of polymer chains. Learners discover how cross-linked polymers behave differently than non-cross-linked...

    $5 - $10 per student Ages 14 - adult 10 to 30 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners discover why only some types of plastic can be recycled. The objective of this activity is to increase awareness of recycling polymers through the use of the "three...

    $1 - $5 per group Ages 14 - adult 45 to 60 minutes
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    University of Illinois Urbana-Champaign
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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. Safety notes:...

    $1 - $5 per group Ages 14 - adult 2 to 4 hours
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    University of Illinois Urbana-Champaign
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    In this activity, learners use three types of cheesy snacks--cheese balls, cheese puffs, and Cheetos--to learn about polymers. This activity introduces learners to basic concepts and vocabulary of...

    $5 - $10 per group Ages 14 - adult 30 to 45 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners identify different classes of matter based on physical properties. This lab activity introduces the key ingredients of concrete and provides a deeper understanding of the...

    $5 - $10 per group Ages 14 - adult 45 to 60 minutes
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    University of Illinois Urbana-Champaign
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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...

    $1 - $5 per group Ages 14 - adult 30 to 45 minutes
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    University of Illinois Urbana-Champaign
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    In this activity, learners determine the elastic and plastic properties of different types of metal wires. Learners discover that wires of the same gauge, but made of different metals, typically...

    $1 - $5 per group Ages 14 - adult 45 to 60 minutes