Explains the science of how screws work, discussing real-life examples such as nuts and bolts, corkscrews, faucets, and tunnel borers, and includes activities that illustrate the principles covered.
Explains the science of how levers work, discussing real-life examples such as openers, bridges, oars, and brakes, and includes activities that illustrate the principles covered.
A foundational look at inclined planes, explaining how these simple machines work and describing some common examples, such as ramps, that have been used throughout history.
Explains the science of how ramps and wedges work, discussing real-life examples such as scissors, zippers, slides, and ski jumps, and includes activities that illustrate the principles covered.
A photographic introduction towheels and axles for beginning readers, explaining what they are and how they work, looking at examples of wheels and axles, and discussing their use in complex machines.
A photographic introduction to wedges for beginning readers, explaining what wedges are and how they work, looking at examples of wedges, and discussing the use of wedges in complex machines.
A photographic introduction to ramps for beginning readers, explaining what ramps are and how they work, providing examples of ramps, and looking at ramps and complex machines.
A photographic introduction to screws for beginning readers, explaining what screws are and how they work, looking at examples of screws, and discussing the use of screws in complex machines.
A photographic introduction to pulleys for beginning readers, explaining what pulleys are and how they work, looking at different types of pulleys, and discussing pulleys and complex machines.
A photographic introduction to levers for beginning readers, explaining what levers are and how they work, looking at classes of levers, and discussing the use of levers in complex machines.
