How Machines Work. 9781848772120
How Machines Work A truly interactive guide to how machines work. This fun, hands-on guide illustrates the principles of force and motion with colourful diagrams and twelve working machines to build - a must for budding engineers.
- Hardcover: 24 pages
- Age Range: 7 - 9 years
- Publisher: Templar
- ISBN-13: 9781848772120