4th Grade

Readers learn all about wetlands and their complex interactions with plants and animals in this colorful title! Although wetlands don't necessarily need to be covered in water all year long, most areas are pretty wet...

Adaptation has been happening for thousands of years and continues to happen today. As animals' environments change, they have to learn how to adapt to that new environment. Read through the pages of this fascinating...

Animals have senses just like we do, but their senses work much differently than ours. Birds eyes don't move at all and some insects use their feet to smell things! Find out about the unique ways in which animals use...

Playing Tug-of-War, pedaling a bike, jumping rope - these actions all require force! We typically don't notice most of the forces around us, but they surround us all the time. Find out how force works, and then harness...

The human body is made of up trillions of cells! Without cells and their remarkable abilities, there would be no life. Layer by layer, you'll journey into animal and plant cells to discover what these building blocks...

Matter is all around us! Everything we see is made up of matter - including this e-book you are holding and even our bodies. Explore the different states of matter, its properties, how it changes, and much more in this...

Dynamite is highly explosive. This is because it's a chemical reaction waiting to happen. Chemical reactions happen all the time - even inside us! Reactants change to make new products. Explore physical and chemical...

What are circuits? Why are they so important? How do they affect our lives every day? Students will find out the answers to these questions and more as they read through the engaging pages of this e-book. Fun facts and...

Don't get caught wearing flip flops in the snow! Knowing about the climate of different places will prepare you for any kind of weather. Take a trip from the equator to the polar regions of Earth and learn about the...

Matter is everywhere. It is anything that can be touched, moved, or interacted with physically. But when breaking matter down into its tiniest pieces, we find that atoms are made almost entirely of empty space. Join...

Energy literally makes the world go 'round. Without it, nothing would live, move, or react. While energy cannot be created or destroyed, we rely on it to change form when we warm our hands with a cup of hot cocoa, ride...

You can't make something out of nothing. This is because there are certain laws that everything in the universe follows. It may seem like magic, but it's really a matter of matter. Join physicists from past and present...