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In this activity, learners use sieves with different-sized holes to sort balls by size.

In this activity, learners explore the relative size of the Sun and Earth as well as the distance between them.

This is an activity in which learners will find that they can detect differences in concentration better with their nose (smelling) than with their eyes (seeing).

In this activity, learners play a card game that explores different size scales--macro, micro and nano.

In this activity, learners investigate just how small a billionth of a meter is by attempting to cut a paper ruler down to a nanometer-sized sliver.

In this activity, learners discover that a material can act differently when it's nanometer-sized.

In this activity, learners mark their height on a height chart and discover how tall they are in nanometers.

In this activity, young learners use different-sized paper 'caterpillars' and various household items to predict and measure their height.

In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.

In this activity, learners use their sense of smell to explore the world on the nanoscale.

In this activity, learners explore how the application of nano-sized "whiskers" can protect clothing from stains.

In this activity, learners investigate what happens when you build up static electricity on plastic balls.

In this activity, learners discover that nanoparticles of gold can appear red, orange or even blue. They learn that a material can act differently when it’s nanometer-sized.