How the World Works

You stare at the side of a rock wall near the ocean. Suddenly, you notice a spiral outline in the rock. You found an ammonite fossil! You are filled with awe as you think about how this shelled sea animal might have lived millions of years ago. Find out...

Hi, there! I'm an emperor penguin. I might be the largest penguin on Earth, but I started life much smaller, just like you! Learn more about my life cycle and how I went from an egg to the king of Antarctica.

From the cars people drive to the phones in their pockets, computers are found everywhere in our world, and they're becoming smarter. But what makes a computer program intelligent? How can some programs beat humans at chess or trivia games? Can computers...

A young boy has a pumpkin seed. A very small pumpkin seed. A very small but special pumpkin seed. And what will become of this very small but special seed? He'll only find out if he lets it grow, and grow, and grow! Because sometimes the smallest things...

Unlock the mysteries of Earth’s continents . . . with a time-traveling teen! In this full-color graphic novel, teenage geoscientist and time-traveler Crystal delivers all the dirt on the planet’s rocky past, from lava rocks to massive landforms. With...

Unlock the mystery of life on planet Earth . . . with a talking bacterium! In this full-color graphic novel, Bertie the Bacteria takes readers on a joke-fueled journey, revealing how small organisms became some of Earth’s largest creatures, including the...

Some climates are dry and some are wet. Some are cold and some are warm. But those words can describe weather too. Learn the difference between weather and climate. Find out how landforms and location can influence weather patterns.

Deep, deep down, at the very bottom of the ocean, lies a secret world. Through lyrical narration, this spare-text STEM picture book takes readers on a journey to a place very few humans have ever been, the Mariana Trench. The imagined voyage debunks...