Fun machines

ISBN13: 
9780836809565
Compare Title: 
funmachinesstepbystepscienceactivityprojectsfromthesmithsonianinstitution
Call Number: 
680

Fun machines

step-by-step science activity projects from the Smithsonian Institution
1993
Provides instructions for making such devices as a tin-can telegraph, crystal radio, and kaleidoscope, and suggests a variety of related experiments and other activities.
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