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Build a hydrometer (measures the density of a liquid) using a pipet or eyedropper.

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

Learners measure a bottle full of air, and then use a vacuum pump to remove the air. When they re-weigh the bottle, learners find the mass is about 0.8g less.

Learners will explore the concept of angular distance, and investigate why the moon appears to be the same size as the sun during a solar eclipse, despite the sun being much larger.

In this activity, learners sort different natural phenomena into categories (they occur on Earth, on the Moon, or on both), and then model how energy moves during a quake using spring toys.

In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.