STEM

What is a liquid? What are its properties, and how can it turn to a solid or gas? In Liquids, beginning readers learn about this state of matter and how it applies to their everyday lives.… More →

In How Do Galaxies Form?, early fluent readers will learn what galaxies are, theories about how they form, and what happens when they collide with each other. Beautiful, crisp, full-color… More →

What is density? How does it affect whether an object sinks or floats? In Density, beginning readers learn how particles play a role in comparing the density of different objects. Vibrant,… More →

What is mass? How can we measure it? In Mass, beginning readers learn about mass and matter and how they apply to their everyday lives. Vibrant, full-color photos and simple diagrams… More →

What is a solid? What are its properties, and how can it turn to a liquid? In Solids, beginning readers learn about this state of matter and how it applies to their everyday lives. Vibrant,… More →

In Where Do Black Holes Go?, early fluent readers will learn what black holes are and theories about what's inside them. Beautiful, crisp, full-color photographs complement the text and aid… More →

What is volume? How can we measure it? In Volume, beginning readers learn about volume as it applies to measuring liquid and solid ingredients to bake cookies and fill a cookie jar. Vibrant,… More →

What is a gas? What are its properties, and how can it turn to a liquid? In Gases, beginning readers learn about this state of matter and how it applies to their everyday lives. Vibrant,… More →

In What Was the Big Bang?, early fluent readers will learn about the leading theory of how our universe came to be. Beautiful, crisp, full-color photographs complement the text and aid… More →

In Where Do Asteroids Come From?, early fluent readers will learn what asteroids are, how they form, and what happens when they get too close to Earth. Beautiful, crisp, full-color… 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 →