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Diet Light
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In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.

Under Pressure
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In this experiment, learners examine how pressure affects water flow. In small groups, learners work with water and a soda bottle, and then relate their findings to pressure in the deep ocean.

Release the Grease!
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In this simple activity (on page 7 of the PDF), learners use water and liquid dish detergent to see which one removes lipstick better from an index card.

Color-Changing Carnations
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Learners place cut flowers in colored water and observe how the flowers change. The flowers absorb the water through the stem and leaves.

Free-Fall Bottles & Tubes
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In this physics activity, learners conduct two experiments to explore free-falling.

Water Clean-up
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This is an activity (located on page 3 of the PDF under Water Clean-up Activity) about the use of reduction agents to decontaminate ground water.

Water Body Salinities II
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In this activity, learners discuss the different salinities of oceans, rivers and estuaries.

Design a Submarine
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Learners act as engineers and design mini submarines that move in the water like real submarines.

From Gas to Liquid to Solid
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What causes frost to form on the outside of a cold container? In this activity, learners discover that liquid water can change states and freeze to become ice.

What is in the Water?
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In this activity, learners use open inquiry to learn about the process of science as well as gain experience regarding the Law of Conservation of Mass, dissolution, and density.

Let's Look at Water & the Scientific Method
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This activity has learners observe water and compare it to other liquids.

Science at the Waterpark!
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This activity (on page 2 of the PDF under SciGirls Activity: Water Slides) is a full inquiry investigation into speed and motion and takes place at a water park.

Leaf it to Me
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In this activity, learners observe the effect of transpiration as water is moved from the ground to the atmosphere.

Planaria Fishing
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In this activity, learners capture and observe planaria, which are worms that eat tiny pond critters.

Lighting Up Celery Stalks
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In this activity, learners conduct a series of hands-on experiments that demonstrate how the working of plants' veins, known as capillary action, enables water to travel throughout the length of a pla

Watercraft
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In this design challenge activity, learners build a boat that can hold 25 pennies (or 15 one inch metal washers) for at least ten seconds before sinking.

Inverted Bottles
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In this activity, learners investigate convection by using food coloring and water of different temperatures.

Ocean in a Bottle
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In this simulation activity, learners observe what can happen when ocean waves churn up water and oil from an oil spill.

Causes and Effects of Melting Ice
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In this activity, learners explore the concept of density-driven currents (thermohaline circulation) and how these currents are affected by climate change.

Freshwater Ecosystems
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In this activity, learners create a freshwater ecosystem in a large plastic bottle. Learners cut and prepare bottles, then fill with water, aquatic plants, snails and fish.