LESSEN THE LOAD

SIMPLE MACHINES FORKIDS


LEVERS
LESSEN THE LOAD

SIMPLE MACHINES FORKIDS
Illustrated by Micah Rauch


EXPLORE THE BIOMES IN THIS PICTURE BOOK SCIENCE SET!





Nomad Press
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ISBN Softcover: 978-1-64741-098-8
ISBN Hardcover: 978-1-64741-095-7
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See? Saw!
Two friends on either end.
Up? Down!
Use a lever to push each other high into the air.
Find a mess on the floor?
Get the broom and sweep!
That broom?
Yep, it’s a lever.
Fish? Fish!
Cast out and reel in.
Sore arm?

Nope! Not even after hours of using a lever—your fishing pole!

Have you ever visited a playground with a seesaw?


You and a friend can go
UP and DOWN, UP and DOWN.
If you both weigh the same, going UP and DOWN is easy.

What if your friend is heavier than you?
Who will find it easier to rise UP?
To fall DOWN?
That seesaw is a simple machine—a lever!

A lever is made up of a beam and a fulcrum.
The BEAM is the part of the seesaw where you and your friend sit.
The FULCRUM is the base on which the seesaw balances.
The kid GOING UP on the seesaw is called the load.
The other kid uses what’s called force to LIFT their friend.

A simple machine is a device that helps us do work—and play!

Other simple machines include screws, inclined planes, wedges, pulleys, and wheels and axles.
Seesaws are a fun example of levers!
But levers also help us do many kinds of jobs. They are especially good at helping us lift HEAVY THINGS.

How do levers help us lift heavy things?
By giving us a mechanical advantage.