4th Grade

Water, water everywhere! Although wetlands don't necessarily need to be covered in water all year long, most areas are pretty wet. Whether they are freshwater or tidal, they play a key role in the...

Breathe in . . . breathe out. Do you ever wonder how you can do that? And do you ever wonder what happens to the air you breathe? Read this book to learn about your amazing lungs and how they work...

How do we learn about the world around us? One good way is to use our senses. The senses give us five different ways to explore the world. But how do they do that? Read this book to find...

What does this Spanish-translated book, a table, and your big toe have in common? They are all solids! A solid keeps its shape and always has the same volume. Read this Spanish-translated book to...

Most of the Earth's changes happen over millions of years. But earthquakes can force significant changes to the land in just a few moments. Readers will learn the science of plate tectonics and its...

As far as dangerous weather goes, tornadoes may be the most fierce and powerful of storms. Readers will learn how and where tornadoes hit, and how people protect themselves from their life-threatening...

Images of an erupting volcano can be mesmerizing. Readers may be surprised to learn that volcanoes erupt every day. Some erupt constantly, while others lie dormant for years or even centuries. Readers...

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...

DNA is known as the blueprint for life! Found in every cell of every living thing, DNA strands are packed inside a cell's nucleus carrying instructions and genetic...

While Earth is constantly changing, evidence shows that humans are speeding up the process of the greenhouse effect. Extreme weather, plant and animal extinction, and...

Adapt or die. From migration to camouflage, species' traits have adapted over time to make life livable in the harshest of environments. Explore common, uncommon, and just plain...

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...