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

Medicine is always improving.

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

How does wheat turn into bread?

La miel es deliciosa, ¡pero hacerla lleva mucho trabajo!

How is honey made from a flower?

You know that magnets hold pictures on a refrigerator.

Space vehicles are out of this world!

How does cotton turn into a soft T-shirt?

How does a sheet of leather become a football?

Welcome to the exciting world of police officers!

Tanks are big and tough military vehicles.

Helicopters are fast and impressive military aircraft.

As COVID-19 raged around the world in 2020, scientists undertook an unprecedented effort to create effective treatments and vaccines.

Landlubbers can make a splash with these easy-to-make watercraft using simple, everyday items!

One moment, you're standing in front of a crowd.

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

¿Cuál es el primer paso para obtener la leche?

How do trees make sweet maple syrup?

Readers will learn all about farm sprayers, including how farmers use them and how this farming technology might change and evolve in the future.

Electricity powers lights, computers, and television sets.

Un bate de béisbol primero fue un árbol.

Aircraft carriers are big and strong military watercraft.

Carefully leveled text and fresh, vibrant photos engage young readers in learning about how helicopters work.

Explore the structures you encounter in your everyday life and around the world that exist because of engineering.

Carefully leveled text and fresh, vibrant photos engage young readers in learning about how garbage trucks work.

Through colorful photos and simple text, follow the delicious journey from golden wheat fields to fresh-baked bread loaf.

Did you know people can dig underground and use Earth's heat to make energy?

Be your own robotics engineer and watch these clever machines come to life.

Fighter jets are fierce and swift military aircraft.

How does steel become a shiny new bicycle?

Carefully leveled text and fresh, vibrant photos engage young readers in learning about how fire trucks work.

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

Can something small matter at all?

From cyber worlds to nano-technology, discover an array of always-changing technologies.

How does a sheet of plastic become a soccer ball?

A good detective knows that crime scene evidence can make or break a case.

La sal es un condimento muy usado para darle sabor a la comida.

What vehicle can push away rocks and dirt?

Readers will learn all about farm sprayers, including how farmers use them and how this farming technology might change and evolve in the future.

Did you know that the sunlight that warms your skin on a sunny day can be used to produce energy?

How does a roll of leather become a pair of basketball shoes?

This exciting book explains the role of skid steers on farms.

From cyber worlds to nano-technology, discover an array of always-changing technologies.

This roundup of emergency vehicles not only covers ambulances, fire trucks, and police cars, but also fireboats, lifeboats, search-and-rescue helicopters, and more.

What truck do you need when you want to make a new sidewalk?

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

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

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

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

How does grass help cows make yummy milk?