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Clean Water: Is It Drinkable?
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In this activity, learners simulate nature's water filtration system by devising a system that will filter out both visible and invisible pollutants from water.

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

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?

Water Walk
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Learners take a field trip along a local body of water and conduct a visual survey to discover information about local land use and water quality.
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.

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

Water Cycle in a Bag
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In this activity, learners will explore the water cycle by creating a small atmosphere.

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.

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.

Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.

Super Soaking Materials
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In this activity, learners will test cups full of potting soil, sand, and sphagnum moss to see which earth material is able to soak up the most water.

Fragile Waters
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In this activity (on pages 18-29) learners explore the impact of the March 24, 1989 oil spill in Alaska caused by the Exxon Valdez tanker.

Gravity Fountains
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This activity (located on page 3 of the PDF under GPS: Glaciers Activity) is a full inquiry investigation into the forces of gravity and air pressure.

Exploring an Ecosystem
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In this ecology activity, learners make a model water-based ecosystem called a terraqua column. The column (in a large soda bottle) includes pond water, duckweed, sand or gravel, and small snails.
Without An Ark: The Effects of Storms and Floods
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April showers bring May flowers, but what do coastal storms bring?

What Lives Here
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In this outdoor activity/field trip, learners explore an aquatic site such as a pond, lake, stream, river or seashore to find and investigate plants and animals that live in water.

How is Coastal Temperature Influenced by the Great Lakes and the Ocean?
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In this two-part lesson, learners discover how large bodies of water can serve as a heat source or sink at different times and how proximity to water moderates climate along the coast.

Salt Water Revival
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In this outdoor activity, learners visit the intertidal zone of a rocky coastal site well populated with marine organisms.

Positive Planning Adds Up
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In this drawing/mapping activity, learners design plots of land while incorporating positive strategies for improving water quality.

Engineer a Dam
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In this activity, learners explore the function and engineering of dams and how dams have many uses and solve many problems in the world.