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“Exploring the Solar System: Ice Orbs” is a hands-on activity in which visitors investigate a frozen orb, trying to learn about objects hidden inside.

In this activity, learners will model the mechanical weathering and erosion of rocks in a stream or river.

This activity provides instructions for using cornstarch and water to make an ooze which has the properties of both a solid and liquid.

In this activity (located on page 10 of the PDF), learners explore the properties of spraying and dripping water, while making art.

In this activity, learners will explore how density is affected by temperature and how that can create currents.

In this activity, learners explore gravity and air pressure as they experiment with holding a glass full of water upside down, without spilling it, using a simple piece of cardstock.

In this activity (located on page 6 of the PDF), learners explore the ways people access water in their homes.

In this water activity, learners discover ways to move water across the water table.

This activity explores the basic workings of a siphon, which is the core technology that makes toilets work.

This Exploratorium activity can be used in many contexts because geysers are great opportunities for learning about heat and temperature changes as well as geological/space science phenomena.

In this activity, challenge learners to predict and investigate how many water drops they can fit on one penny.

As a group, learners consider sources of water pollution to understand where pollution starts and where it ends up.

In this activity, learners observe the hydrologic cycle in action as water evaporates and condenses to form rain right before their eyes.