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Why Doesn’t the Ocean Freeze?
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In this activity, learners explore how salt water freezes in comparison to fresh water.
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.
Make a "Mummy"
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The Ancient Egyptians used a naturally-occurring salt from the banks of the Nile River, called natron, to mummify their dead.
Atoms and Matter (K-2)
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In this activity, learners explore atoms as the smallest building blocks of matter. With adult help, learners start by dividing play dough in half, over and over again.
Bridge the Gap
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Learners work in groups to construct bridges using stale marshmallows and toothpicks.
Draggin' Boats
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Learners design, build, and test models of "dragon boats" made from up to three milk cartons.
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.
Design a Submarine
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Learners act as engineers and design mini submarines that move in the water like real submarines.
Soapy Boat
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Learners discover that soap can be used to power a boat. Learners make a simple, flat boat model, put it in water, and then add a drop of detergent at the back of the boat.
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.
Make Your Own Deep-Sea Vent
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In this activity, learners make a model of the hot water of a deep sea vent in the cold water of the ocean to learn about one of the ocean's most amazing and bizarre underwater habitats.
Marshmallow Models
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No glue is needed for learners of any age to become marshmallow architects or engineers.
Walk On Water Bugs
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In this activity (on pages 29-35), learners examine water pollution and filtration.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.
Pop Can "Hero Engine"
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In this activity, learners build water-propelled engines from soft drink cans.
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.
Water Cycle in a Bag
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In this activity, learners create a biosphere in a baggie.
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.