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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).

This is a hands-on activity exploring how nanoscale particles are used in mineral sunblocks to increase their transparency.

In this physics activity, learners explore how sound is created by vibrations.

Things that are different sizes and stiffness vibrate differently, and in this Exploratorium Science Snack, you'll see how rings of various diameters react to vibration and external forces.

By making models of light waves with paper, learners can understand why different colors appear in bubbles.

In this activity, learners investigate how geometry plays a role in perspective.

In this activity, learners use binoculars (or a telescope) to identify and track sunspots. If using binoculars, learners need a pair that can be secured on a tripod.

In this activity, learners investigate visual perception as well as plan and conduct their own experiments.