Science fair winners : junkyard science : 20 projects and experimentsabout junk, garbage, waste, things we don't need any more, and ways to recycleor reuse it -- or lose it
|aScience fair winners : |bjunkyard science : 20 projects and experimentsabout junk, garbage, waste, things we don't need any more, and ways to recycleor reuse it -- or lose it / |cby Karen Romano Young ; illustrations by David Goldin.
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