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In this activity, learners investigate the concepts of relative size and distance by creating a basic model of the solar system.

In this demonstration, learners compare the relative sizes and masses of scale models of the planets as represented by fruits and other foods.

In this math activity, learners will create a scale diagram of their backyard or other outdoor area on graph paper.

In this activity (located on page 4 of PDF), learners gain insight into the actual size of dinosaurs and practice making estimations and measurements.