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Wiggly Water
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This is a simple and fun activity for learners to explore water and colors.
A Funny Taste
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In this activity, learners explore the different salinities of various sources of water by taste-testing.
How Much Water is in that Cloud?
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In this activity, learners working in pairs saturate a cotton ball using water drops from an eyedropper to demonstrate the high water capacity of clouds.
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.
Investigating Density Currents
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In this lab activity, learners explore how to initiate a density current. Learners measure six flasks with different concentrations of salt and water (colored blue).
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.
How Plants Grow
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In this biology activity (page 3 of the PDF), learners will explore how plants turn sunlight into food through a process called photosynthesis.
Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.
From Here to There
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In this water activity, learners discover ways to move water across the water table.
A Cubic Foot Per Second
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In this activity, learners measure and calculate the amount of cubic feet various containers contain. Next, learners investigate cubic feet per second (cps), by carrying jugs in one second.
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.
Spill Spread
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In this simulation, learners explore how ocean currents spread all kinds of pollution—including oil spills, sewage, pesticides and factory waste—far beyond where the pollution originates.
What Causes Wind?
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In this sunny day experiment, learners measure and compare how quickly light and dark colored materials absorb heat.
Waves and Tides
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In this 7-10 day investigation, learners develop an understanding of waves and tides and their motion through discussion, demonstration, and hands-on activities.
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.
Water Cycle in a Bag
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In this activity, learners will explore the water cycle by creating a small atmosphere.
Filtration Investigation
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In this activity, learners explore how engineering has developed various means to remove impurities from water.
We all Scream for Ice Cream
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In this activity, learners observe how salinity affects the freezing point of water by making and enjoying ice cream.
What Does Life Need to Live?
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In this astrobiology activity (on page 11 of the PDF), learners consider what organisms need in order to live (water, nutrients, and energy).
Solar Water Heater
Learners work in teams to design and build solar water heating devices that mimic those used in residences to capture energy in the form of solar radiation and convert it to thermal energy.