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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.

In this activity, learners discover that the way a material behaves on the macroscale is affected by its structure on the nanoscale.

In this chemistry challenge, learners identify an unknown white powder by comparing it with common household powders.

In this activity/demo about piezoelectricity, learners discover how some crystals produce electricity when squeezed.

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

In this challenge, learners have to figure out in what order to combine five solutions to change the color from clear, to yellow, to blue, and back to clear.

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

In this chemistry challenge, learners combine acids and bases in a universal indicator to create five different colors.

In this activity, learners interact with whale artifacts such as replicas of skulls, bones, teeth, and baleen (hair-like plates that form a feeding filter).

In this activity, learners create and experiment with wind tubes. These tubes are a playful and inventive way to explore the effect that moving air has on objects.

Learners are challenged to create solutions that conduct electricity and make a buzzer buzz (or an LED light up).

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

In this activity, learners consider how a simple machine, a lever, turns a small push or pull (a small force) into a larger--or stronger--push or pull (a larger force).

In this activity, learners investigate how some butterfly wings get their color.

In this activity, learners investigate the properties of graphene and graphite.

In this experiment, learners use JOY liquid detergent and glycerin to make the largest bubble they can that lasts 15 seconds.

In this activity, participants will learn about how gigantic clouds of gas and dust in space, called nebulas, are formed. They'll create their own colorful model nebula using paint and a spinner.

In this activity, learners explore how the application of nano-sized particles or coatings can change a bigger material’s properties.

In this activity, participants will learn how stars form from the dust and gas that exists in space clumping together.

This activity models the way Landsat satellites use a thermal infrared sensor to measure land surface temperatures.