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In this activity, learners take measurements and create charts to learn about the size of dinosaurs and their relative scale to humans.

This activity was designed for blind learners, but all types of learners can utilize it to investigate volume, mass, and density.

Learners observe and compare the sizes of three toy “growing” crocodiles made from water-absorbent polymers. One is it its original state, dry, hard, and about 10cm long.

In this activity, learners prepare four polymer elastomers and then compare their physical properties, such as texture, color, size, and bounce height.