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Drop Shape
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In this activity, learners get a closer look at the shape of a drop of water and a drop of oil. Learners first drip water onto wax paper and examine the shape of separate drops from a side view.

Comparing the Density of an Object to the Density of Water
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Learners compare the weight of equal volumes of wax, water, and clay. Learners discover that since the wax weighs less than an equal volume of water, it is less dense than water and will float.

Water Treatment
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Water treatment on a large scale enables the supply of clean drinking water to communities.

Diffusion of Water with Gummy Bears
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In this activity, learners investigate the movement of water into and out of a polymer. Learners test the diffusion of water through gummy bears, which are made of sugar and gelatin (a polymer).

Go with the Flow
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Learners draw comic-style pictures to show the water cycle. From a starting picture, one learner draws what happens to the water in the next panel, then passes the comic strip to another learner.

Disappearing Crystals
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Learners experiment with water gel crystals, or sodium polyacrylate crystals, which absorb hundreds of times their weight in water. When in pure water, the water gel crystals cannot be seen.

Penny Drop
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In this quick activity about the properties of water (page 1 of PDF under SciGirls Activity: Malformed Frogs), learners will use an eyedropper to slowly place one drop of water at a time onto a penny,

Changing the Density of a Liquid: Heating and Cooling
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Learners investigate how the temperature of water affects its density.
Big and Little Cups
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In this indoor or outdoor water activity, learners pour water from small cups to large cups and containers. In doing so, they discover water takes the shape of its container.

Moving On Up: Capillary Action 1
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Over the course of several days, learners explore the property of water that helps plants move water from roots to leaves or gives paper towels the capacity to soak up water.

A Little Drop of Water: Cohesion
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Learners explore water's property of cohesion through two investigations.

Electrostatic Water Attraction
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In this activity, learners conduct a simple experiment to see how electrically charged things like plastic attract electrically neutral things like water.

Who Dirtied The Water?
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In this activity, learners receive a labeled plastic film canister containing a material representing a pollutant (i.e. pencil shavings = a beaver's wood chips).

Heat Capacity: Can't Take the Heat?
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Why is ocean water sometimes the warmest when the average daily air temperature starts to drop? In this activity, learners explore the differing heat capacities of water and air using real data.

Stuck on You: Adhesion
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Learners explore water adhesion and learn about why water molecules are more strongly attracted to some substances than others.

What-a-cycle
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In this activity, learners act as water molecules and travel through parts of the water cycle to discover that it is more complex than just water moving from the ground to the atmosphere.

Water: A Basic Ingredient
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In this activity, learners explore healthy choices related to the liquids they drink. The importance of water and milk as essential nutrients for a healthy body is the focus of the experience.

Conductivity: Salty Water
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Water, whether fresh or salty, serves as one of the best electrical conductors on the planet. Does salt effect its conductivity?

Make a Wire Critter That Can Walk on Water
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In this activity, learners make water-walking critters using thin wire, and then test how many paper clips these critters can carry without sinking.

Sunny Day Painting
Source Institutions
In this activity, learners explore properties of water and watch evaporation happen by "painting" with water in the sun.