Explains how and why ramps and other inclined planes are used in everyday life.

Describes many different kinds, uses, and benefits of pulleys. Provides examples of pulleys by showing a flagpole, a crane, an elevator and window blinds.

Explains how inclined planes are used, presenting examples from the past and in everyday contemporary life.

A New York Times Notable Children's Book for 2011 Samantha can't wait to try out her new roller skates, but Mama's too busy too help her. What's a girl to do? Well, this girl isn't waiting. While Mama tends to other things, Sammy straps on the skates. First she glides down the hallway. Then she tries the sidewalk. Next, she ventures a bit farther down the street. She's doing great! But when she finds herself cresting Hawthorn Hill, it's too late to stop-- Samantha is on a roll!

The weels push, race, stroll, fly, whiz, and spin all day long.

Takes a look at ramps and wedges, what they are, how they are used, and how they help us.

While trying to cross a moat, Archimedes the Goat and Skinny the Hen learn why objects sink or float.

A boy's wonderful mama takes him zooming everywhere with her, because her wheelchair is a zooming machine.

Discusses what a screw is and how it is used.

NOW A NETFLIX ORIGINAL SERIES Like bad smells, uninvited weekend guests or very old eggs, there are some things that ought to be avoided. Snicket's saga about the charming, intelligent, and grossly unlucky Baudelaire orphans continues to alarm its distressed and suspicious fans the world over. The tenth book in this outrageous publishing effort features more than the usual dose of distressing details, such as snow gnats, an organised troupe of youngsters, an evil villain with a dastardly plan, a secret headquarters and some dangerous antics you should not try at home. With the weather turning colder, this is one chilling book you would be better off without.