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In this fun sticker activity, learners will create a size wheel with images of objects of different size, from macroscopic scale (like an ant) to nanoscale (like DNA).

In this activity, learners observe live fish in tanks to consider how their body structures are related to their behaviors and habitats.

In this collecting/comparing activity, learners work with samples of sand from different places like a lakefront, river, or ocean beach.

Using a real-size sketch of a baby elephant's footprint, learners estimate, measure and record the width (diameter) and outside edge length (perimeter or circumference) of the footprint.