Why are screws so useful How do screws change forces How can screws help to move materials Making Machines with Screws looks at everything from lifting gripping and fixing with screws to the role of screws in more complex machines such as microscopes. This series explains the physics behind simple machines using everyday examples and asks readers to embark on practical projects to show this science in action.

Author Biography

Chris Oxlade is an experienced author of non-fiction books for children. He has written more than 200 titles on science, technology, sports and hobbies, from encyclopedia articles to fun activity books.