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Decomposition Column
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In this activity, learners turn empty 2-liter bottles into a see-through compost container.

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.

The Recycling Conservation Calculator
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In this environmental activity (page 16 of the PDF), learners will calculate the amount of energy they save by recycling paper, plastic, glass, and aluminum materials over the span of a week.

Planting with Precision
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In this activity, learners explore how engineers work to solve the challenges of a society, such as efficient planting and harvesting.

Energy Choices Board Game
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This board game teaches learners about energy decision making. Players select cards that determine the transportation and home design that will influence their expenses as they play.

Forward Thinking
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In this activity, learners create their own weather forecast map.
Waves: An Alternative Energy Source
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In this data analysis and environmental science activity, learners evaluate the feasibility of wave energy as a practical alternative energy source using ocean observing system (OOS) buoys.

Star Power
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In this activity, learners create a star show and discover how they can prevent light pollution. Using simple materials, learners first design constellation boxes.

AM in the PM
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In this activity, learners will listen to as many radio stations as possible to discover that AM radio signals can travel many hundreds of miles at night.

Measure the Pressure II: The "Dry" Barometer
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In this activity, learners use simple items to construct a device for indicating air pressure changes.

The Carbon Cycle: Carbon Tracker
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In this activity, learners play NOAA's Carbon Tracker game and discover ways to keep track of carbon dioxide and other greenhouse gases in the world.

Don't Throw it in the Garbage
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In this activity, learners discover why only some types of plastic can be recycled.

Cartesian Diver
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In this quick activity (page 1 of the PDF under SciGirls Activity: California Fish), learners will build a simple Cartesian Diver in an empty 2-liter bottle.
Making Rivers
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In this outdoor water activity, learners explore how to change the direction of water flow. Learners make puddles in dirt or use existing puddles and sticks to make water flow.

Speedy Shelter
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In this design challenge activity, learners invent an emergency shelter that can fit a person and is sturdy and quick to build.