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Wedges Make a Point

Wedges Make a Point

Simple Machines for Kids

How do you keep a truck from rolling? A door from closing? And how do you cut through banana bread? All of these questions have the same answer—a wedge! Wedges are one of the simple machines that help make work easier by using mechanical advantage. In Wedges Make a Point: Simple Machines for Kids, readers ages...

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Screws Keep Things Secure

Screws Keep Things Secure

Simple Machines for Kids

Build your treehouse with screws! Screws are one of the simple machines that are designed to make different kinds of work easier! Lifting, pulling, pushing, and fastening things together—all these tasks are more efficient when you use a simple machine. In Screws Keep Things Secure: Simple Machines for Kids, readers ages 5 to 8 learn...

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Space Adventurer

Space Adventurer

Bonnie Dunbar, Astronaut

What’s it like to travel among the stars? What can we learn by doing science experiments in space? When Bonnie Dunbar spotted Sputnik traveling across the sky from where she stood on her family’s farm, she knew that’s what she wanted to do when she got older. In Space Adventurer: Bonnie Dunbar, Astronaut, readers ages 5 to 8...

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