Can a playground generate electricity? |
Can a game (there's an app for that) teach kids about energy conservation? |
Can coffee ground be recycled into biofuels? |
They clean up nice! Can a turbine installed in downspots generate electricity to light up a house? |
How can we improve insulation to eliminate noise from airports? |
Can we convert kinetic energy into electricity? |
Can we make packaging material out of coffee grounds and newspaper? |
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