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Drain Game
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In this activity (on pages 36-39), learners make a model of a watershed out of paper, then run water down the mountain to simulate how rainfall and pollution affect watersheds.
The Game of Life: Stem Cell Edition
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In this activity, learners play a game that models what happens as stem cells differentiate into different cell types.
My Solar System
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In this online activity, learners build their own system of heavenly bodies and watch the gravitational ballet.
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.
Water "Digs" It!
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In this activity, learners investigate soil erosion. Learners set up a simulation to observe how water can change the land and move nutrients from one place to another.
Black Holes: No Escape
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This fun and simple hands-on astronomy activity lets learners experiment with marbles and weights to discover some basics about gravity and black holes.
Does the Moon Rotate?
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This fun and simple hands-on astronomy activity lets learners make 3-dimensional models of the Earth and Moon.
What is a "Model"?
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In this activity, learners simulate the behavior of the atmosphere.
Exploring Black Holes and Gravity
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This fun and simple hands-on astronomy activity lets learners imagine what would happen if our Sun were replaced with a black hole.
Model Well
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In this quick activity about pollutants and groundwater (page 2 of PDF under Water Clean-up Activity), learners build a model well with a toilet paper tube.