000 00889ctm a2200229u 4500
005 20171010072919.0
007 ta
008 090520|||||||||||||||||||||||||||||eng|u
020 _a978-1-59920-086-6
_cSpring 2009 World Almanac Education $24.40
100 1 _aOxlade, Chris.
245 1 0 _aWedges and ramps
260 0 _aMankato, MN
_bSmart Apple Media
_c2008
300 _b32p.: col. photos
520 _aThere are wedges and ramps all around us - from the ax used to chop wood to the special ramps used by wheelchairs. But what are wedges and ramps, and how do they work?
521 1 _a1 - 6
650 4 _aSimple machines.
650 4 _aInclined planes.
650 4 _aWedges.
961 w l _t12
999 _c52839
_d51509