Roll Slope And Slide

Skateboards, roller coasters, and playground slides, all of these are ramps. From award-winning author Michael Dahl, this nonfiction picture book provides an introduction to one of the most important machines humans rely on. With fun facts and bright illustrations, find out how people use ramps every day.

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

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

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

Provides an introduction to constructivist physics with classroom examples illustrating how children construct knowledge. Shows how to promote children's scientific reasoning by engaging them in active experimentation.