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In this activity, learners explore polymer structure and their ability to reform around objects by attempting to stab a wooden skewer through a balloon without popping it.

In this optics activity, learners examine how polarized light can reveal stress patterns in clear plastic.

In this activity, learners complete simple exercises to investigate the relationship between force, area and pressure and their effects on materials.

In this activity about physical stress (page 28 of PDF), learners discover that muscles and bones need to work to stay strong.