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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.

Using indirect methods, learners determine the shape and size of a piece of carpet hidden under a piece of plywood.

In this activity, learners explore how engineers have developed sorting systems which integrate into manufacturing and packaging processes. Learners explore how coins are made.

In this activity (on pages 2-8), learners experience how scientists use classification in their study of animals.