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In this activity, learners see how many coins they can add to a full glass of water before the water overflows.

Take the two-straw challenge and discover how pressure affects vacuums! In this activity, learners experiment with drinking through one and two straws, comparing the amount of liquid they can drink.

Extract your DNA from your very own cells! First, learners swish salt water in their mouth to collect cheek cells and spit the water into a glass.

Learners use a candle to investigate the products of combustion. When a glass rod is held over a lit candle, the candle flame deposits carbon on the rod.

In this optics activity, learners explore how light bends and affects what we see.

In this optics activity, learners make a lens and explore how the eye manipulates the light that enters it.

In this activity, learners use a flashlight, a glass of water, and some milk to examine why the sky is blue and sunsets are red.