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الاستماع والقراءة

Sally M. Walker

Roseann Feldmann

What do hammers, wheelbarrows, and brooms have in common? All of them are levers! Levers are simple machines. They help us to do jobs more easily. But don't take our word for it. Put levers to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question?How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Intuitive

Lerner

Searchlight Books  — How Do Simple Machines Work?

Put Levers to the Test

What do staircases, dump truck beds, and ramps have in common? All of them are inclined planes! Inclined planes are simple machines. They help us to do jobs more easily. But don't take our word for it. Put inclined planes to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question—How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Put Inclined Planes to the Test

What do bicycles, doorknobs, and screwdrivers have in common? All of them use wheels and axles to perform work! Wheels and axles are simple machines. They help us to do jobs more easily. But don't take our word for it. Put wheels and axles to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question?How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Put Wheels and Axles to the Test

What do jar tops and water-bottle lids have in common? Both of them are screws! Screws are simple machines. They help us to do jobs more easily. But don't take our word for it. Put screws to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question?How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Put Screws to the Test

What do a doorstop, a butter knife, and the front of a boat have in common? All of them are wedges! Wedges are simple machines. They help us to do jobs more easily. But don't take our word for it. Put wedges to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question?How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!

Put Wedges to the Test

What do flagpoles and some window blinds have in common? They use pulleys to perform work! Pulleys are simple machines. They help us to do jobs more easily. But don't take our word for it. Put pulleys to the test with the fun experiments you'll find in this book. As part of the Searchlight Books™ collection, this series sheds light on a key science question?How Do Simple Machines Work? Hands-on experiments, interesting photos, and useful diagrams will help you find the answer!