Readers learn how this simple machine makes it easier to move things from one place to another. They also learn a wheel works with an axle. By the end of the book, readers know the difference between complex and simple machines and how wheels are used in everyday life to make work easier.
Explore the colorful customs, people, and places of Virginia. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
Explore the colorful customs, people, and places of Washington. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
Explore the colorful customs, people, and places of the District of Columbia. With straightforward text and captivating photos, this book is a great introduction to the district. Maps and symbols are included to enrich the student's understanding of geography and district identity.
Readers learn how this simple machine makes it easier to split things apart or stop them from moving. They learn how thicker wedges need more force to split something apart than thinner wedges. By the end of the book, readers know the difference between complex and simple machines and how wedges are used in everyday life to make work easier.
Explore the colorful customs, people, and places of Vermont. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
While Velociprator means 'quick thief,' did this small dinosaur actually steal its food? Find the answer to this and other questions in this fascinating book.
The name Triceratops means 'three-horned face.' It's easy to see how this dinosaur got its name! Learn what Triceratops ate, where it lived, and more.
Explore the colorful customs, people, and places of Utah. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
A very simple introduction to the life and accomplishments of noted scientist and inventor Thomas Alva Edison.
Explore the colorful customs, people, and places of Texas. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
Explore the colorful customs, people, and places of Tennessee. With straightforward text and captivating photos, this book is a great introduction to the state. Maps and symbols are included to enrich the student's understanding of geography and state identity.
Did you know that a Stegosaurus weighed more than a pickup truck? Or that despite its fierce looks, it ate only plants? Learn more inside.
How did Spinosaurus get its name? What did it eat? Find the answers to these questions and more in this fact-filled book!
Drink it. Spill it. Splash it. Water is wet. But water changes as it warms up and cools down. This simple, colorful book teaches kids about the three forms of water.
Readers learn how this simple machine makes it easier to keep objects locked together. By the end of the book, readers know the difference between complex and simple machines and how screws are used in everyday life to make work easier.
Amazing magnets are everywhere--on the refrigerator and inside machines and toys. Even Earth is a giant magnet! A magnet can be strong enough to lift a car. But magnets work only in a certain way. This simple, colorful book explores the attractive power of magnets.
What is electricity? How is it made? How does it end up in your house? This simple, colorful book teaches kids about the force that powers our world.
Oviraptor's name means 'egg thief.' Learn why scientists made a mistake when they named this dinosaur!
A very simple introduction to pianos, their history, what they sound like, what they look like, and how they are played.
In this book, readers learn what gravity is and how it impacts weight. They learn about the US customary system and the metric system, where each is used, and the units of measurement in each system. Readers also learn about balances, scales, and estimating weights.
In this book, readers learn what volume is and why and how it is measured. They learn about the US customary system and the metric system, where each is used, and the units of measurement in each system. Readers also learn about volumes of liquids and solids.
In this book, readers learn what temperature is and why and how it is measured. They learn about the Celsius and Fahrenheit scales and where each is used. Readers learn about thermometers and how they help us in everyday life--from taking body temperatures to regulating how cool or warm our homes are.
In this book, readers learn what the clock measures and why knowing how to tell time--in seconds, minutes, and hours--is important. They learn the history of the clocks, including sundials and hourglasses. They also learn how to read analog and digital clocks to tell time. Sidebars instruct math by showing readers how to add and subtract hours.
In this book, readers learn what the calendar measures and why knowing how to measure days, weeks, months, and years is important. They learn the history of the lunar and solar calendars, how days and months get their names, and the different calendars around the world. Sidebars instruct math by showing readers how to add and subtract days.
