Zoom in on simple machines

An introduction to wheels and axles that describes their parts, functions, uses, and history.

Introduces young readers to the simple machine known as the wedge, describing what it is and how it is used.

Introduces young readers to the simple machine known as the pulley, describing what it is and how it is used.

Introduces young readers to the simple machine known as the lever, describing what it is and how it is used.

Introduces young readers to inclined planes, discussing what they are, how they are used and more.

Describes wheels and axles, including the history, function, and everyday uses.

Describes wedges, including the history, function, and everyday uses.

Describes screws, including the history, function, and everyday uses.

Describes pulleys, including the history, function, and everyday uses.

Describes levers, including the history, function, and everyday uses.