Grade 4

Whether viewed from the ground or from a plane flying high above Earth's surface, clouds give us a lot to think about! In this book, the questions that kids have about clouds are answered… More →

In What Are Exoplanets?, early fluent readers will learn what and where exoplanets are and what scientists learn about our universe by studying them. Beautiful, crisp, full-color photographs… More →

In What Causes a Supernova?, early fluent readers will learn why some stars explode into supernovas, and what scientists learn about our universe by studying them. Beautiful, crisp,… More →

The village of Bottom needed a new leader. With a lot of demanding people to care for, this was a big job. It was a shame that it happened to fall to Nina. The villagers were in for a bumpy ride. More →

What happens when food burns? Learn about the chemical reactions behind the process and make delicious food yourself! Vibrant, full-color photos and carefully leveled text will engage young… More →

Why are some places on Earth hot and dry? Why do other places have thick, lush forests? Why are some places blanketed with snow during the winter while others get lots of rain? The answers to More →

More →

What will happen to a snowman when the sun starts to shine and the temperature rises? Why do puddles disappear? How does water get into the sky to fall as rain? Young readers are already… More →

How hot is a flash of lightning? How fast does rain fall from a cloud? What type of weather can pull a tree out of the ground? In this book, young readers will witness the raw power of… More →

Climate is the usual weather found in a place, from how much rain it gets in a year to a change in temperature during a certain month or season. Earth's climate is always changing, but what… More →

From snow days to sledding, cold weather can be a lot of fun. Learn what causes cold weather and how to stay safe on a snowy day. This engaging hi-lo book draws in 3rd through 5th grade… More →

From picnics to splashing at the beach, hot sunny days can be a lot of fun. Learn why weather gets warm and how to stay safe on hot days. This engaging hi-lo book draws in 3rd through 5th… More →