Children’s / Teenage general interest: Machines and how things work

Appealing photos and simple text highlight items made of cloth, such as hats, flags, rag dolls and more.

Since prehistoric times, people have been fascinated by electricity and magnetism.

How does wheat turn into bread?

How does a peanut turn into peanut butter?

How does milk turn into frosty ice cream?

How do trees make sweet maple syrup?

How does grass help cows make yummy milk?

How does a cocoa bean turn into tasty chocolate?

Kids will find out how wrenches tighten bolts in many types of situations.

Curious readers will discover how screwdrivers tighten screws using different kinds of tips.

Learners will understand how saws have sharp teeth that cut through wood.

Young readers will learn how pliers grip and hold objects in their jaws.

Students will see how levels indicate whether objects are flat or straight.

Beginning readers will explore how hammers pound in and pull out nails.

Chris P.

How is a book made?

¿Cómo se hacen los crayones?

How is a bridge built?

Describes Ben Franklin's interest in and experiments with electricity, what he learned about electricity, and his famous experiment with lightning.

What is matter and where can it be found?

Why do some things heat up quickly while others don't?

Where does electricity come from?

What do forklifts do?

How is a book made?

How is a house built?

How are crayons made?

How are bricks made?

Did you know that both electricity and light move in waves, like water does?

What is work?

Of the six simple machines, the wheel and axle is probably the most recognized.

Do you know what a lever is?

How does an apple tree produce a tasty fruit?

How does a tadpole become a frog?

How does a corn seed become corn on the cob?

How does a foal grow into a horse?

How is honey made from a flower?

How does an egg become a butterfly?

People, animals, machines, and wind all make sounds.

Solids, liquids, and gases are the three states of matter.

You know that magnets hold pictures on a refrigerator.

The sun, lightbulbs, and flickering fires all bring light to our world.

The sun, furnaces, and ovens all make heat.

Electricity powers lights, computers, and television sets.

What do bicycles, doorknobs, and screwdrivers have in common?

What do a doorstop, a butter knife, and the front of a boat have in common?

What do jar tops and water-bottle lids have in common?

What do flagpoles and some window blinds have in common?

What do hammers, wheelbarrows, and brooms have in common?

What do staircases, dump truck beds, and ramps have in common?

Did you know that people first used road signs more than 2,000 years ago?