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How Does Water Climb a Tree?
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In this activity, learners conduct an experiment to explore how water flows up from a tree's roots to its leafy crown.

Dissolving Different Liquids in Water
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In this activity, learners add different liquids to water and apply their working definition of “dissolving” to their observations.
Water Motor
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In this physics activity (page 10 of the PDF), learners will explore how energy from moving water can be used.

Filtration Investigation
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In this activity, learners explore how engineering has developed various means to remove impurities from water.

Supercooled Water Drops
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In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly.

Moving On Up: Capillary Action II
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Learners explore capillary action in plants (such as plants ability to move water from roots to leaves) in an investigation called Paper Blooms.

Measure the Speed of a Water Leak
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In this activity (page 2 of PDF under GPS: Glaciers Activity), learners will measure the rate at which water streams out of a leaky cup.

Amazon Water Cycle Roleplay
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In this creative roleplay activity, learners will explore the various processes of the water cycle using movement, sound, and props to aid in comprehension.

Sinking Water
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In this experiment, learners float colored ice cubes in hot and cold water.

Differing Densities: Fresh and Salt Water
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In this activity, learners visualize the differences in water density and relate this to the potential consequences of increased glacial melting.

Light Soda
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In this activity, learners sublimate dry ice and then taste the carbon dioxide gas.

Frozen Sculptures
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In this activity, learners use objects they find on a nature and water to make creative frozen sculptures.

Water Drop Races
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In this activity, learners will explore the physics of liquids and gas by playing with both! Learners of any age use their own breath to move drops of water across a smooth wax paper surface.

Salt 'n Lighter
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In this activity, learners discover that as the salinity of water increases, the density increases as well. Learners prove this by attempting to float fresh eggs in saltwater and freshwater.

Above Water: Buoyancy & Displacement
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In an investigation called "Shape It!" learners craft tiny boats out of clay, set them afloat on water and then add weight loads to them, in order to explore: how objects stay afloat in water; what th

To Dye For
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Learners add two dyes to mineral oil and water, and then compare their miscibility (how well they mix) in each.

Using Color to See How Liquids Combine
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Learners add different liquids (water, salt water, alcohol, and detergent solution) to water and observe the different ways the different liquids combine with water.

Estuaries
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An estuary is a body of water that is created when freshwater from rivers and streams flows into the saltwater of an ocean.

A Spray Spree
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In this activity, learners explore water pressure by conducting an experiment with a garden hose. Learners build a testing apparatus and create PVC nozzles with different sized holes.

Gravity-Defying Water
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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.