screws

Readers learn how this simple machine makes it easier to keep objects locked together.

Analiza los tornillos y las formas en que se utilizan.

Through visually pleasing and informative infographics, readers are presented with scientific concepts that are manageable and that make sense in the context of their everyday lives.

Simple text and photographs provide an introduction to screws.

"This book introduces beginning readers to machines, physics, and screws using real-world, full-color photographs and simple text"--OCLC.

Did you put the cap on the toothpaste tube today? Then you’ve used a screw! These simple machines are all around. Take a look inside this book, and discover 13 different ways we use screws.

Describes work, machines, inclined planes, gravity and friction, and wedges in everyday surroundings, and presents experiments that explain how they work.

Describes what screws are and how they work as well as different kinds of screws and their uses.

Text and pictures introduce the screw, a simple machine used as a ramp, to lock things together, and more.

"[Readers] will learn how screws work, where they're found, and their uses throughout history"--Publisher.