Capstone

A nail is hard. A cotton ball is soft. Why are some objects hard and others soft? Find out in this series about materials and their properties. Inf...

Colorful feathers. Shiny scales. Fish and birds make very different pets! Compare these two eye-catching pets side by side. Which one costs more? W...

Scaly bodies. Eye-catching spots and stripes. Snakes and lizards are fun, interesting pets! Compare these two reptiles side by side. Which is easie...

You see a fin poke out of the water. It’s a big gray animal with a friendly face. It looks like a dolphin, but is it a porpoise? Dolphins and porpo...

Irena Sendler was a social worker who wanted to help people. World War II left many vulnerable. Irena helped them get medical care and necessities ...

Hop! Jump! Rabbits and guinea pigs are cute, furry, and fun! Compare these two fluffy pets side by side. Which one needs more space? Which pet is e...

Scaly bodies. Eye-catching spots and stripes. Snakes and lizards are fun, interesting pets! Compare these two reptiles side by side. Which is easie...

Hop! Jump! Rabbits and guinea pigs are cute, furry, and fun! Compare these two fluffy pets side by side. Which one needs more space? Which pet is e...

Chubby cheeks. Soft fur. Long whiskers. Hamsters and gerbils are cute pets! Compare these two small rodents side by side. Which one is easier to tr...

Chubby cheeks. Soft fur. Long whiskers. Hamsters and gerbils are cute pets! Compare these two small rodents side by side. Which one is easier to tr...

Silky coats. Cute faces. Both rats and ferrets are smart, fun pets! Compare these two active pets side by side. Which needs a bigger cage? Which li...

Silky coats. Cute faces. Both rats and ferrets are smart, fun pets! Compare these two active pets side by side. Which needs a bigger cage? Which li...

Purr. Woof! Both dogs and cats are great furry friends! Compare these two popular pets side by side. Which needs more exercise? Which pet stays cle...

What kind of dog is that? It's an Irish Wolfhound! Learn about this breed's history, abilities, and what it takes to give these big dogs a good home.

Colorful feathers. Shiny scales. Fish and birds make very different pets! Compare these two eye-catching pets side by side. Which one costs more? W...

Explore the life and achievements of Irma Rangel, an educator, attorney, and the first Mexican American woman to be elected to the Texas House of R...

Purr. Woof! Both dogs and cats are great furry friends! Compare these two popular pets side by side. Which needs more exercise? Which pet stays cle...

Welcome to the Hawkeye State! Learn about Iowa's history, geography, weather, people, and more in this book that's all about our 29th state.

Pedro y su papá se van de aventura en el bosque. Papá no puede esperar para enseñarle a Pedro cómo sobrevivir en la naturaleza. Pero Pedro es mucho...

The Eraser, sworn enemy of the Library of Doom, has come up with a wicked new scheme. He’s created a powerful gas that will turn ink invisible and ...

The Eraser, sworn enemy of the Library of Doom, has come up with a wicked new scheme. He’s created a powerful gas that will turn ink invisible and ...

Welcome to the Hawkeye State! Learn about Iowa's history, geography, weather, people, and more in this book that's all about our 29th state.

Pedro and his dad are off on an adventure in the woods. Dad can't wait to show Pedro how to survive in the wild. But Pedro is a lot better at climb...

Earth is under attack. Areas once prized for their valuable mines are crumbling. Who is responsible for this devastation? No one knows, because no ...