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Deep Sea Diver
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In this ocean engineering activity, learners explore buoyancy and water displacement. Then, learners design models of deep sea divers that are neutrally buoyant.

Regolith Formation
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In this three-part activity, learners use food to determine the effects of wind, sandblasting and water on regolith (dust) formation and deposition on Earth.

Tiny Geyser Models
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In this activity (located on page 2), learners will construct tiny model geysers out of film canisters, warm water, and antacid seltzer tablets.

Small Habitats
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In this activity, learners build a model of a self-sustaining habitat (growing grass and beans from seeds).

Solar Cooker
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Learners build a simple solar oven from a shoebox, black construction paper, and aluminum foil. Over the course of a few hours, the oven heats up water enough to brew tea.

A Hole in the Ground
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Learners build models of sinkholes to gain an intuitive knowledge of their physical aspects.

Earth Atmosphere Composition
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In this activity, learners use rice grains to model the composition of the atmosphere of the Earth today and in 1880. Learners assemble the model while measuring percentages.

Cave in a Cup
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In this activity (page 2 of PDF under GPS: Cave Swallows Activity), learners will model how caves are formed by placing one piece of chalk in a cup of vinegar and another piece in a cup of water, then

How it is Currently Done
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In this quick activity, learners observe how wind creates ocean currents.

Make a Prism
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In this activity, learners will make their own prism and use a glass of water to separate sunlight into different colors.

Do Cities Affect the Weather?
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In this activity, learners explore clouds and how they form.
River Catcher
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In this activity (located at the top of the page), learners make an easy river strainer and see what they can catch.

Weather Stations: Storms
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In this activity, learners test how cornstarch and glitter in water move when disturbed. Learners compare their observations with videos of Jupiter's and Earth's storm movements.

Hot Stuff!: Testing for Carbon Dioxide from Our Own Breath
Learners blow into balloons and collect their breath--carbon dioxide gas (CO2). They then blow the CO2 from the balloon into a solution of acid-base indicator.

Ice on Mars
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In this activity, learners use sand and ice cubes to create a model of permafrost and the effects of the ice melting through the surface.

Sea Level: On The Rise
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Learners will understand the relationship between climate change and sea-level rise.

Hot Stuff!: Testing Ice
In this demonstration, learners compare and contrast regular water ice to dry ice (frozen carbon dioxide). Both samples are placed in a solution of acid-base indicator.

Blue Sky
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In this optics activity, learners explore why the sky is blue and the sunset is red, using a simple setup comprising a transparent plastic box, water, and powdered milk.

Underwater Hide and Seek
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In this activity, learners experience firsthand how marine animals' adaptive coloration camouflages them from prey.

Avogadro's Bubbly Adventure
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In this activity on page 7 of the PDF, learners investigate the solubility of gas in water at different temperatures. This experiment will help learners determine if temperature affects solubility.