Beskrivning
Screws are simple machines used for many different jobs. The concept of a screw is used in snow blowers, drills, and presses. Kids can learn how screws work, and how they are used in complex machines.
Bokdetaljer
Format
e-bok
Sidor
25 sidor
Språk
Engelska
Publicerad
aug 1, 2009
Förlag
Bellwether Media
Upplagor
2 utgåvor
ISBN-10
1612115322
ISBN-13
9781612115320