Chris Ollerenshaw
1) Electricity
Author
Series
Pub. Date
1994
Description
This book discusses the mechanics and uses of electricity, both from batteries and that supplied by the electric power company.
3) Levers
Author
Series
Pub. Date
[1994]
Accelerated Reader
IL: MG - BL: 4.4 - AR Pts: 1
Description
This book discusses the way levers are used in toys, including prying things, rowing boats, turning small movements into bigger ones, and more.
4) Gears
Author
Series
Pub. Date
1994
Description
This book discusses how gears work, the use of a drive wheel, belt drives, connections and directions, vertical and horizontal gears, and more.
