Beskrivning
Includes brief discussions and experiments about force and motion, gravity, magnets, energy and motion, wheels, pulleys, and gears.
Bokdetaljer
Format
Pocketbok
Sidor
45 sidor
Språk
Engelska
Publicerad
jan 1, 1982
Förlag
Childrens Pr
ISBN-10
0516016466
ISBN-13
9780516016467