Where did the caterpillar go?

It seems to have disappeared, but it hasn't. It has turned into a butterfly! From the time a caterpillar first hatches, it eats so fast that it's skin can't keep up. It sheds its skin several times as it grows bigger and bigger. Eventually it forms a shell around itself called a chrysalis. Nothing seems to happen for a long time. But then one day the chrysalis splits open, and a beautiful butterfly emerges. What a magical metamorphosis!

Did you ever walk through a wall? Drink a glass of blocks? Have you ever played with a lemonade doll, or put on milk for socks? This latest addition to the Let's-Read-and-Find-Out Science series introduces the youngest readers to an important science concept: the differences between solids, liquids, and gases. Any child who wants to know why he can't walk through a wall will enjoy Kathleen Zoehfeld's simple text and Paul Meisel's playful illustrations.

‘Accompanied by NASA photographs and Dorros’s colorful, lively drawings, the text explains the Earth’s rotation in clear and simple terms. An experiment using a lamp as the ‘sun’ further clarifies the principles introduced.’ —BL.

You live on Earth, so you already know a lot about it. But do you know about its place in out solar system? For instance, it's not the largest planet. If Jupiter were a hallow ball, 1,000 Earths would fit inside it. And did you know our planet Earth takes 365 days to go around the sun, while the planet Pluto takes 248 years?

This simple text by Franklyn M. Branely introduces the nine planets in our solar system and is complemented by Kevin O'Malley's full-color illustrations, which incorporate some of the newest space photographs available. How hot is it on Venus? Which planet takes longest to orbit the sun? Find out the answers in this updated version of this popular text. Kevin O'Malleys often humorous illustrations depict a group of children and an astronomer as they learn all about our solar system. Included are some of the newest space photographs available, as well as many hands-on activities.

Do you ever wake up and wonder what the weather will be? Instead of turning on the TV to find out, you can just look out your window at the clouds. How do you know what type of clouds can forecast a change of weather? Read and find out.

Will a magnet pick up a paper clip or a feather? The answer is, just the paper clip. Magnets only pick up things that contain bits of iron. In this new addition to the Let's-Read-and-Find-Out Science series, veteran author Franklyn Branley explains the properties and behavior of magnets. True Kelley's charming illustrations will entertain readers as they discover for themselves what makes a magnet. Hands-on activities include making a magnet and compass.

Because the moon revolves around Earth, it seems to grow and shrink. Children can read about the phenomena of the moon’s phases and with an experiment using an orange, a pencil, and a flashlight, they can see why the moon looks different at different times of the month. ‘A welcome addition to science collections for young children.’ —SLJ.

What goes up must come down.

Everybody knows that. But what is it that pulls everything from rocks to rockets toward the center of the earth? It's gravity. Nobody can say exactly what it is, but gravity is there, pulling on everything, all the time. With the help of an adventurous scientist and his fun-loving dog, you can read and find out about this mysterious force.

Simple language and humorous illustrations show how forces make things move, prevent them from starting to move, and stop them from moving.

How do you learn what the world is like?

Through your five senses! Each sound and taste, each smell, sight, and touch helps you to discover something new. So find out more about your senses-what they are and what you can learn through them about the exciting world.The world awaits!