TY  - BOOK
AU  - Oxlade,Chris
TI  - Simple experiments with wheels and axles
T2  - Science experiments with simple machines
SN  - 1615337547 (library binding)
PY  - 2014///
CY  - New York
PB  - Windmill Books
KW  - Axles
KW  - Experiments
KW  - Juvenile literature
KW  - Friction
KW  - Wheels
N1  - Includes bibliographical references and index; Simple machines -- Wheel and axle parts -- Rolling on wheels -- Dragging and rolling -- Wheels, axles, and forces -- Gear wheels -- Wheels, axles, and gears at work -- Wheel and axle system -- Inventing the wheel -- Wheels and axles in the past -- Rolling and slowing -- Rough and smooth -- Amazing machines
ER  -