Give the subject of energy a zap! This workbook offers a brief overview of energy, its sources and uses. With clear vocabulary and illustrations, it's a great introduction to what fuels us.

The reading and writing practice in this workbook will get kids thinking about all the different parts that go into a good story, like vocabulary, structure and sequencing.

Set your child’s foundation for the math covered in upper grades by helping her master the patterns, tables and shortcuts involved in multiplication. This book covers basic to intermediate exercises.

Embark on a worldwide animal safari with this nature-lover's workbook! Learn about animal habitats, endangered species and more, all while honing reading comprehension skills.

Suffixes, verb tenses and plural nouns boil down to simple spelling patterns in this workbook. Kids will handle S, -es, -ing and -ed. It's all in the endings!

Learn the lay of the land with a comprehensive breakdown of Earth's landforms. From buttes to fjords, kids will learn all the terminology and science behind the amazing structures of our planet.

Nature documentaries might make the animal world seem graceful, but it's actually pretty gross! Explore all the icky, sticky and smelly things animals do to help each other survive in the wild.

In this arrays 101 workbook, we explore and practice concepts like multiplication, repeated addition, factors, and products — all using arrays!

If your kids are looking for new reading material, hand them these! Enjoy these diverse fairy tales that come from all over the continent of Asia.

Learn about presidents Washington, Lincoln and Obama. Reading quizzes, writing in academic formats, color-by-numbers, history timelines and designing monuments: This workbook has it all!

Get acquainted with the original GPS...maps! This geography workbook goes over all the fundamentals of finding your way, from cardinal directions to map scale, landforms and more.

Get your second grader's creativity flowing with this workbook, boasting all of the right stuff he needs to create events in a sequence, and eventually even pen his own prompts!

Fractions and decimals are way more fun when you apply them to real life scenarios, like parties, food and pets! This workbook teaches kids all about splitting up numbers.

Find your inner musician with this fun-filled workbook all about music. Read about the history of different music genres, and learn to read music on the piano and guitar too!

This guide takes your child through all the steps of creating a successful science fair project, from choosing a project and conducting research, to writing up a report and making a display.

Count on this vocabulary-focused resource as the go-to workbook all about natural resources! Write, research and get a breakdown of the world around by the natural resources we need and use.

Meet mythical creatures from all around the world with these creative writing prompts. Tell a story from a monster's perspective, trek the Himalayas with a yeti and create your own monster too!

Celebrate the Summer Olympics with this activity book. Learn some history, get to know Olympic athletes and ready yourself with all the tools you need to host your very own backyard games!

Personal narrative writing is all about you—the writer! Kids will enjoy writing about themselves, from personal experiences and to feelings and emotions. Plus, they'll learn how to map a story.

Your child may be able to read a clock, but what about the passage of time? This workbook is all about elapsed time, and how to both estimate and calculate how much time has passed in between hours.

United States symbols include songs, buildings, documents and people. This introduction to the Constitution and national treasures keeps learning fun and manageable for your young citizens.

Squeeze in some extra practice in word analysis, spelling, and punctuation with these engaging vocabulary worksheets.

Challenge your fourth grader with these spelling worksheets that include grade-specific words and word problems involving new vocabulary.

This workbook builds reading comprehension by reinforcing vocabulary with word puzzles, homophones and a few quick reading pages.

These vocabulary worksheets will introduce kids to the wide world of words and get them excited about learning new skills through reading.

Practice reading, writing, and understanding poetry with the help of the Mudville Nine by exploring the classic poem, "Casey at the Bat."

This workbook enhances reading comprehension skills and spelling with a fun collection of word searches covering geology, food, animals and historical figures.

This workbook is packed with challenging third grade spelling words that your child can practice writing and applying to his or her vocabulary.

It's fact vs. opinion statements about interesting animals in this workbook. Kids will also think about how diagrams and images help clarify reading passages.