Capstone

Have you ever heard of a bird that lays its eggs on the ground instead of in a nest? What about a bird that lays eggs in other birds' nests? Young ...

Have you ever heard of an invertebrate that spends its whole life inside another animal? What about a beetle that spends most of its life undergrou...

Zoom! The elevator zips from the bottom floor to the top floor of a tall building. Beep! Beep! The subway stops for people to get on and off. Using...

Have you ever heard of a frog that freezes solid in winter? What about a toad that carries its eggs on its back? Young readers will learn all about...

Have you ever heard of a reptile that spends most of its life in an egg? What about a reptile that has to lay its eggs on the same beach where it w...

Fascinating facts, figures, and pictures highlight informative text about some of the most interesting and extreme jobs that use science. Young rea...

Have you ever heard of a bird that lays its eggs on the ground instead of in a nest? What about a bird that lays eggs in other birds' nests? Young ...

The field of medicine is fascinating. But some medical conditions, treatments, and experiments are almost unbelievable! Did you know workers test m...

Have you ever heard of a mammal that lays eggs? What about a mammal that can give birth to 50 babies at once? Young readers learn all about echidna...

Have you ever heard of a frog that freezes solid in winter? What about a toad that carries its eggs on its back? Young readers will learn all about...

What’s inside a black hole? What are the sounds we hear from the depths of space? How did the moon form? When it comes to the realm beyond our plan...

Have you ever heard of a male fish that carries eggs? What about a fish that gives birth to live young? Young readers will learn about seahorses, g...

In the autumn of 1912, the football team from Carlisle Indian Industrial School took the field at the U.S. Military Academy, home to the bigger, st...

Have you ever heard of a male fish that carries eggs? What about a fish that gives birth to live young? Young readers will learn about seahorses, g...

What’s inside a black hole? What are the sounds we hear from the depths of space? How did the moon form? When it comes to the realm beyond our plan...

Have you ever heard of an invertebrate that spends its whole life inside another animal? What about a beetle that spends most of its life undergrou...

Fascinating facts, figures, and pictures highlight informative text about some of the most interesting and extreme jobs that use math. Young reader...

In the autumn of 1912, the football team from Carlisle Indian Industrial School took the field at the U.S. Military Academy, home to the bigger, st...

Why do we yawn? Are left-handed people more creative? Why do we have fingerprints? When it comes to our bodies, there are a whole lot of questions ...

How did life begin? How many species are on our planet? Can we bring extinct species back to life? When it comes to life on our planet, there are a...

How did Earth form? Where did all the water come from? How did Earth’s plates begin to shift? When it comes to our planet, there are a whole lot of...

Why do we yawn? Are left-handed people more creative? Why do we have fingerprints? When it comes to our bodies, there are a whole lot of questions ...

How did life begin? How many species are on our planet? Can we bring extinct species back to life? When it comes to life on our planet, there are a...

How did Earth form? Where did all the water come from? How did Earth’s plates begin to shift? When it comes to our planet, there are a whole lot of...