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Can Nutrients in Water Cause Harm?
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In this water pollution activity, learners create pond water cultures and investigate the effects of adding chemicals or natural nutrients.
Home Water Audit
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This activity offers learners and their families several ways to raise their awareness together about home water.
Marshmallow Models
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No glue is needed for learners of any age to become marshmallow architects or engineers.
Build A Bee Bath
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In this activity, learners use found natural materials to create a water haven for bees and other insects.
Shrinking Cups
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This is a quick activity (on page 2 of the PDF under Gecko Feet Activity) about the forces of gravity and surface tension and how their behavior is influenced by size.
How Did That Get There?: Water Pollution
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As a group, learners consider sources of water pollution to understand where pollution starts and where it ends up.
Oil Spill Cleanup
This hands-on experiment will provide learners with an understanding of the issues that surround environmental cleanup.
Pop Can "Hero Engine"
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In this activity, learners build water-propelled engines from soft drink cans.
Make a Lake
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Where rainwater goes after the rain stops? And why there are rivers and lakes in some parts of the land but not in others?
Great Steamboat Race
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In this outdoor activity, learners race small boats, made of cork, balsa wood, popsicle sticks etc., to investigate the rate and direction of currents in a stream or creek.
Low-Tech Water Filter for High-Impact Clean
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In this activity, learners consider the water features they might enjoy at a community park--a pond, brook, water playground (or "sprayground"), or pool--and what happens to the water over time.
Build A Hydrometer
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In this activity, learners will explore how a hydrometer works by building a working model and conducting experiments.
Build An Aqueduct
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In this activity, learners use the design thinking process to design and build their own aqueduct, or water bridge.
Cleaning Water with Dirt
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In this activity on page 7 of the PDF (Water in Our World), learners make their own water treatment systems for cleaning water.
Sand Castle Saturation
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In this activity about saturation (page 1 of PDF under SciGirls Activity: Sand Dunes), learners will build a series of sand castle towers using a 16 oz cup.
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.
Exploring Forces: Gravity
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In this nanoscience activity, learners discover that it's easy to pour water out of a regular-sized cup, but not out of a miniature cup.
Forces at the Nanoscale: Nano Properties of Everyday Plants
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This is an activity (located on page 3 of PDF under Nasturtium Leaves Activity) about surface tension.