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Straining Out the Dirt
Learners take on the role of environmental engineers as they design water filters.

Erosion and Floods
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In this activity, learners create models of erosion and floods and learn to recognize both in their environment.
Soaring Towers: Building with Recycled Materials
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In this activity, learners will build the highest tower they can out of recycled materials.

Bottle Cars
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In this activity, learners explore motion, energy, and electricity by constructing bottle cars that run on motors.

3...2...1 Puff!
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In this activity, learners build small indoor paper rockets, determine their flight stability, and launch them by blowing air through a drinking straw.

Stream Table
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In this activity, learners use aluminum trays and wooden blocks to form stream tables to investigate river formations in two different landscape scenarios.

Recipe for a Moon
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In this activity, learners discover that the Moon, like Earth, is made up of layers of different materials. Learners work in teams to make models of the interiors of the Moon and Earth.

The Thousand-Yard Model
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This is a classic exercise for visualizing the scale of the Solar System.

Modeling the Seasons
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This activity provides instructions for learners to create models of the Earth and then to model a "day" on Earth as well as modeling the seasons.

Building a 3-D Space Maze: Escher Staircase
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In this activity (page 95 of the PDF), learners create Escher Staircase models similar to those that were used by Neurolab's Spatial Orientation Team to investigate the processing of information about

Paddle Boat
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In this activity, learners build an old-fashioned paddle boat out of simple materials.

Rocket Wind Tunnel
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In this activity, learners evaluate the potential performance of air rockets placed inside a wind tunnel.

Solar System in My Neighborhood
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In this activity, learners shrink the scale of the vast solar system to the size of their neighborhood.
Investigating Convection
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This experiment is designed to illustrate how fluids, including water, have the ability to flow.

Airboat
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In this activity related to Newton's Laws of Motion, learners build a boat powered by a propeller in the air.
Simple Submarine
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Using simple, inexpensive items, learners build and test submarine models.

Balloon Staging
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In this activity, learners simulate a multistage rocket launch using party balloons, fishing line, straws, and a plastic cup.

Our Solar System to Scale
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In this activity, learners plan and create a 24-foot long, two-dimensional model of our solar system, and compare and contrast the differences between planets and the sun.

What Is a Neuron?
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This neuroscience activity introduces learners to how messages are sent and received by neurons. Learners use modeling clay and pipe cleaners to build model neurons.

Looking Back Through Time
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In this activity, learners create their own archaeological profiles.