Popular science

Scientists have identified at least 100 million pieces of space debris-from paint chips to nonoperational zombie satellites-floating in Earth's orbit.

Where is the Solar System's biggest mountain?

Do you know what happens to water when it evaporates?

Could window panes be made out of wood?

Which works better to haul a pumpkin-a lever or wheels and axles?

Which makes it easier to lift a large toy-a wedge or wheels and axles?

Is it easier to move ice with a lever or a screw?

Is it easier to lift a bag full of toys with an inclined plane or a pulley?

These kids are playing a game, trying to move a person with a simple machine.

Is it easier to move heavy box with an inclined plane or wheels and axles?

Have you ever built a cool science project?

Have you ever wondered how the universe began?

How did our knowledge of matter, gravity, and electricity develop over time?

After the 1986 Chernobyl nuclear explosion in Ukraine, scientists believed radiation had created a vast and barren wasteland in which life could never resurface.

Does the universe circle around Earth?

Robots help us understand our universe.

Could life have previously flourished on Mars?

Have you ever stared into the night sky, full of stars and planets?

Pouring juice, freezing it, and adding craft sticks are all part of making popsicles.

Putting kernels in a pot, heating them, and adding salt are all part of making popcorn.

Mixing milk, vanilla, and sugar are all part of making ice cream.

Mixing, cooking, and adding salt and pepper are all part of making scrambled eggs.

Heating, melting, and cutting string for a wick are all part of making a candle.

Mixing, pouring, and frosting are all part of making a cake.

The enormous facts about our solar system can make your head spin!

Learning about heavy physics concepts can sure weigh down your brain!

The supercharged facts about energy and waves can set your brain buzzing!

A dog-shaped bed-and-breakfast.

In the sixth century B.

Vibrant photos and relatable text introduce readers to trees, cookies, shoes, and other kid-friendly examples of solids.

In this book, kids will explore common liquids, from the milk poured on their cereal to water trickling from a faucet.

Introduce young readers to different types of gases, including air, steam, helium and more.

Acquaint emergent readers with different objects that spin-think tops, fans, and more!

Explore the motion of rolling through simple text and colorful pictures highlighting dice, rolling pins, and more.

This easy text presents the concept of staying still by examining trees, rocks, and other stationary objects.

Introduce kids to the concept of moving from Point A to Point B with examples such as cars, kites, and more.

Since prehistoric times, people have wondered how the universe works.

In the early 1880s, only a few wealthy people had electric lighting in their homes.

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.

Everyone feels the effect of the weather but why, for example, was July 2009 such a cool and wet month?

Within this book are delightful nursery rhymes which your child will enjoy singing in the car.

"e;Close-up views of endangered fauna in their natural habitats are difficult enough to obtain, but the breathtaking artistic quality of the photography in this valuable documentation of Asia's disappearing forest habitats makes this book highly recommended for both scientists and nature lovers alike.

At the Root of Things: The Subatomic World is a journey into the world of elementary particles-the basic constituents of all matter in the universe-and the nature of the interactions among them.

"e;This new book is by two knowledgeable and expert popularizers of chemistry and deals exclusively with molecules and compounds rather than with the simpler atoms and elements.

Designed for crafters, puzzle lovers, and pattern designers alike, Crafting Conundrums: Puzzles and Patterns for the Bead Crochet Artist provides methods, challenges, and patterns that offer a springboard for creative exploration.