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Compares various heavy objects to lighter objects in unique, illustrated ways.

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Internet security breaches have been in the news of late. Organizations, governments, businesses, and individual internet users are all at risk. This book introduces readers to the importance of cybersecurity and addresses the current risks from hackers,...

It may be hard to believe that 140 characters are enough to get a message out to millions of people, but Twitter's users do so every minute. Twitter is vital in many different spheres. This book introduces readers to how they, too, can tweet purposefully...

The Internet has revolutionized the way people communicate and do business. It has even affected how people fundraise and seek investors. This introduction to crowdfunding explains how innovative entrepreneurs are using the power of collective groups to...

The Internet has revolutionized the way people communicate and do business. It has even affected how people fundraise and seek investors. This introduction to crowdfunding explains how innovative entrepreneurs are using the power of collective groups to...

They say a picture is worth a thousand words. If that's true, then what are a thousand pictures worth? Today, with the use of mobile smartphones and similar devices containing miniaturized cameras, snapping and sharing photos has never been easier--or...

They say a picture is worth a thousand words. If that's true, then what are a thousand pictures worth? Today, with the use of mobile smartphones and similar devices containing miniaturized cameras, snapping and sharing photos has never been easier--or...

Orangutans are threatened by the loss of their rainforest habitats and their popularity among illegal pet traders. These things leave many orangutans orphaned. However, there are many organizations that have created centers to help these orphaned animals...

Orangutans are threatened by the loss of their rainforest habitats and their popularity among illegal pet traders. These things leave many orangutans orphaned. However, there are many organizations that have created centers to help these orphaned animals...

Understanding the principles of base ten is essential to understanding numbers and operations. Students will build upon their knowledge of place value and be challenged to use it in the context of algebraic operations. Engaging content encourages...

Understanding the principles of base ten is essential to understanding numbers and operations. Students will build upon their knowledge of place value and be challenged to use it in the context of algebraic operations. Engaging content encourages...

Understanding the principles of base ten is essential to understanding numbers and operations. Students will build upon their knowledge of place value and be challenged to use it in the context of algebraic operations. Engaging content encourages...

This book will introduce readers to fractions through relatable contexts and clear explanations. Straightforward visuals will help students to fully grasp the concept of fractions as being multiple parts of a whole. Accessible text and an engaging...

This book will introduce readers to fractions through relatable contexts and clear explanations. Straightforward visuals will help students to fully grasp the concept of fractions as being multiple parts of a whole. Accessible text and an engaging...

This book will introduce readers to fractions through relatable contexts and clear explanations. Straightforward visuals will help students to fully grasp the concept of fractions as being multiple parts of a whole. Accessible text and an engaging...

This book will introduce readers to fractions through relatable contexts and clear explanations. Straightforward visuals will help students to fully grasp the concept of fractions as being multiple parts of a whole. Accessible text and an engaging...

This book will introduce readers to fractions through relatable contexts and clear explanations. Straightforward visuals will help students to fully grasp the concept of fractions as being multiple parts of a whole. Accessible text and an engaging...

Working with data is a foundational concept not only for mathematics, but for also understanding the world around us. Readers will gain exposure to principles of measurement, such as perimeter and area, and will also learn how to apply them to math...

Working with data is a foundational concept not only for mathematics, but also for understanding the world around us. Readers will gain exposure to principles of measurement, such as perimeter and area, and will also learn how to apply them to math...

Working with data is a foundational concept not only for mathematics, but for also understanding the world around us. Readers will gain exposure to principles of measurement, such as perimeter and area, and will also learn how to apply them to math...

Working with data is a foundational concept not only for mathematics, but for also understanding the world around us. Readers will gain exposure to principles of measurement, such as perimeter and area, and will also learn how to apply them to math...

Sharing what you have learned through presentations, reports, or by participating in a science fair is the final step in the scientific method. Chapters explain techniques for assembling a presentation or report, including creating graphic organizers and...

Analysis means looking at the data from an experiment and determining if the results support or disprove your hypothesis. This volume explains how to do this through accurate data collection as well as exploring different methods of analyzing data,...

Scientists conduct experiments to gather information that will prove or disprove their hypotheses. Chapters explain how experiments are set up with controls and variables, how to write up observations, ways to accurately record data for analysis, and the...

Experiments allow people to test and potentially revise their hypotheses. Kids will learn that planning and setting up an experiment requires an understanding of controls and variables, as well as how to collect accurate data. Chapters explain the...

A hypothesis is an educated guess, and this volume breaks down the necessary steps to forming a good one. Chapters focus on showing kids how to make scientific observations, how to find good sources for research, and tips for staying organized. Students...

Rocks break down through the processes of erosion and weathering. Readers will learn through graphic organizers and simple, at-level text what causes erosion and weathering, and how this process is part of the rock cycle. Chapters explore topics such as...

Working with measurements and data is an essential skill for all math students. Readers are introduced to concepts like describing and comparing measurable attributes and sorting objects into categories. Each skill is explained with the help of...

Lightning flashes, and dark clouds spin. A sound like a train or jet engine fills the air. Is it a tornado? How do you know? And how can you prepare for what's to come? Tornadoes: Be Aware and Prepare has the answers.

It's raining heavily. Water rushes along the streets and collects in pools on the lawns. Rivers rise. Is it a flood? How do you know? And how can you prepare for what's to come? Floods: Be Aware and Prepare has the answers.

Rain falls in sheets. The wind howls, bends trees, and tosses objects through the air. Is it a hurricane? How do you know? And how can you prepare for what's to come? Hurricanes: Be Aware and Prepare has the answers.

Find out what a Galápagos tortoise has in common with a shingleback lizard. Discover what sets a Galápagos tortoise apart from a copperhead snake. Readers will compare and contrast key traits of Galápagos tortoises--their appearance, behavior, habitat,...

Yikes! Grandpa tells Dylan and Bel the Weather Girl that he is tracking a tropical storm. They came to Florida for fun in the sun, not to get stuck in a hurricane! Bel explains the science behind the storm. Are the weekend plans ruined? Stay tuned,...

Wow! A snowstorm on a school day turns into a blizzard. Cody is afraid he could be stuck in school until summer! Bel the Weather Girl helps her friends understand what makes some snowstorms change into blizzards. Will the storm let up before school is...

Tornado siren! Bel the Weather Girl and Dylan head to the basement. Dylan is scared the house will blow away! But soon the storm passes. Some storms make tornadoes, and some don't. Bel says she can explain why--in the kitchen. What does baking have to do...

Boom! A crash of thunder follows a flash of lightning. Bel the Weather Girl and Dylan are having a slumber party, but now he's hiding under the covers! Bel tells Dylan that thunderstorms aren't so scary once you understand them. Will Dylan's fear of the...

Ping! Ping! It sounds like the sky is raining rocks! Dylan thinks the house is falling down. Bel the Weather Girl tells him not to worry--she knows all about hail. But her dog, Stormy, hides under the kitchen table anyway. Why are chunks of ice falling...

Celebrated artist Robert Bateman is renowned internationally for bringing the natural world to life on the canvas. A naturalist and painter from his youth, Robert has for decades used his recognition to shed light on environmental issues and advocate for...

Around the world, people are questioning consumerism, leaning toward more sustainable lifestyles and creating a whole new concept of wealth. Until a few hundred years ago, people were embarrassed to buy bread in a store. Families took pride in making...