How can the sun power the lights in our homes? What happens to our things after we recycle them? How is renewable energy being used to fight climate change?

Ada Twist, Scientist: The Why Files is the perfect nonfiction resource for all these questions and more. Based on the bestselling Questioneers series and the Ada Twist, Scientist Netflix show, this nonfiction series is perfect for the youngest scientists of tomorrow as they learn along with Ada. Designed in a scrapbook format, these books combine art from the show, illustrations, and photography to bring simple science concepts to life.

Watch Ada Twist in the Netflix television series Ada Twist, Scientist!

Check out all the books in the Questioneers series:

The Questioneers Picture Book Series: Iggy Peck, Architect Rosie Revere, Engineer Ada Twist, Scientist Sofia Valdez, Future Prez Aaron Slater, Illustrator Lila Greer, Teacher of the Year
The Questioneers Chapter Book Series: Rosie Revere and the Raucous Riveters Ada Twist and the Perilous Pants Iggy Peck and the Mysterious Mansion Sofia Valdez and theVanishing Vote Ada Twist and the Disappearing Dogs Aaron Slater and the Sneaky Snake Lila Greer and the Shrieking Shadow
Ada Twist, Scientist: The Why Files Series: Exploring Flight! All About Plants! TheScience of Baking Bug Bonanza! Rockin' Robots! Going Green!
Questioneers: Ada Twist, Scientist Series: Ghost Busted Show Me the Bunny Brainstorm Book 5-Minute Ada Twist, Scientist Stories
The Questioneers Big Project Book Series: Iggy Peck's Big Project Book for Amazing Architects Rosie Revere's Big Project Book for Bold Engineers Ada Twist's Big Project Book for Stellar Scientists Sofia Valdez's Big Project Book for Awesome Activists Aaron Slater's Big Project Book for Astonishing Artists

What exactly is a robot? How do they talk and move? And what does it take to build one?

Ada Twist, Scientist: The Why Files is the perfect nonfiction resource for all these questions and more. Based on the bestselling Questioneers series and the Ada Twist, Scientist Netflix show, this nonfiction series is perfect for the youngest scientists of tomorrow as they learn along with Ada. Designed in a scrapbook format, these books combine art from the show, illustrations, and photography to bring simple science concepts to life.

Check out all the books in the Questioneers Series:

• The Questioneers Picture Book Series: Iggy Peck, Architect Rosie Revere, Engineer Ada Twist, Scientist Sofia Valdez, Future Prez Aaron Slater, Illustrator Lila Greer, Teacher of the Year
• The Questioneers Chapter Book Series: Rosie Revere and the Raucous Riveters Ada Twist and the Perilous Pants Iggy Peck and the Mysterious Mansion Sofia Valdez and the Vanishing Vote Ada Twist and the Disappearing Dogs Aaron Slater and the Sneaky Snake
• The Questioneers: The Why Files Series: Exploring Flight! All About Plants! The Science of Baking Bug Bonanza! Rockin' Robots!
• The Questioneers: Ada Twist, Scientist Series: Ghost Busted Show Me the Bunny 5-Minute Ada Twist, Scientist Stories Ada Twist, Scientist: Brainstorm Book
• The Questioneers Big Project Book Series: Iggy Peck's Big Project Book for Amazing Architects Rosie Revere's Big Project Book for Bold Engineers Ada Twist's Big Project Book for Stellar Scientists Sofia Valdez's Big Project Book for Awesome Activists Aaron Slater's Big Project Book for Astonishing Artists

How do bees fly? Why does a spider weave a web? And why are bugs so important to our world?

Ada Twist, Scientist: The Why Files is the perfect nonfiction resource for all these questions pondered by the youngest scientists of tomorrow, as they learn along with Ada. Designed in a scrapbook format, these books combine art from the Netflix show, illustrations, and photography to bring simple science concepts to life.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing core Grade 4 and 5 reading skills.
- Developing subject vocabulary on topics such as inventions, inventors, and history.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Pre-level titles are visually engaging and expand subject knowledge and vocabulary for young readers who want to learn more about the world around them. Perfect for children ages 8 to 10 (Grades 4 and 5) who are learning to read with help.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing core Grade 4 and 5 reading skills.
- Developing subject vocabulary on topics such as inventions, inventors, and history.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Pre-level titles are visually engaging and expand subject knowledge and vocabulary for young readers who want to learn more about the world around them. Perfect for children ages 8 to 10 (Grades 4 and 5) who are learning to read with help.

DK Super Readers Level 4: History of Jazz will introduce kids to the history of this unique music and is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as the famous jazz musicians and singers making their mark.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 12 (Grades 4 and 5) who are confident readers ready for a challenge.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing key Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as sharks, predators, and sea creatures.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 11 (Grades 4 and 5) who are confident readers ready for a challenge.

DK Super Readers Level 4: History of Jazz will introduce kids to the history of this unique music and is a motivating introduction to using essential nonfiction reading skills, proving ideal for children ready to enter the riveting world of reading.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as the famous jazz musicians and singers making their mark.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 12 (Grades 4 and 5) who are confident readers ready for a challenge.

Meet the Secret Explorers - a band of brainiac kids from all around the world. Everyone in this diverse group of young experts has a specialty, from outer space to dinosaurs, and each story follows a character who gets chosen for a secret exploration.

This edge-of-your-seat science book for kids is packed with:

- Fun facts and illustrations about animals and plants found in the rainforest of Borneo
- Simple and engaging explanations on how deforestation is altering our planet's biodiversity
- Quizzes, mission notes, and a glossary of words with definitions
- Information that supports STEM-based curriculums

Kids to the rescue!

In this fact-stuffed children's science book, we follow rainforest expert Ollie on an exciting mission to rescue a lost baby orangutan in the steamy rainforest of Borneo. Accompanied by engineering expert Kiki, they set out in a glider to search for the friendly ape.

Along the way, they encounter greedy plantation owners who are plotting to destroy the forest to expand a palm oil plantation! They also learn about the threat that endangered animals and plants face due to deforestation. Kids will love turning the pages to find out if the Secret Explorers manage to succeed in their mission!

It's the perfect gift for children aged 7-9 who love all things rainforest. Packed with lots of information on animal and plant life, this epic adventure book gives them a thrilling introduction to nature.

Keep on exploring!

Each book in the series combines exciting adventures with real-life facts related to the Secret Explorers' latest fictional mission.

Don't miss out on more secret explorations! Dive into an underwater adventure in The Secret Explorers and the Lost Whales. Travel back in time to save a dinosaur egg from destruction in The Secret Explorers and the Jurassic Rescue. Finally, set out on a journey to stop the Cairo Museum from closing down in The Secret Explorers and the Tomb Robbers.

In 1925, disaster struck the small town of Nome, Alaska. When a deadly epidemic begins affecting the children of Nome, their only hope is to relay life-saving medicine over 650 miles of snow-covered trails using teams of sled dogs. Across the long journey, one dog overcame nearly impossible odds to become a hero.

This action-packed series explores the stories of real-life animal heroes who saved the day! With black-and-white art throughout and dramatic storytelling, readers are taken on an exciting journey they won't soon forget.

Fans of Ranger in Time will devour these true tales of incredible animal heroes!

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing key Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as geology, natural resources, and life on Earth.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 11 (Grades 4 and 5) who are confident readers ready for a challenge.

Looking for a fun fourth-grade reading comprehension book for kids age 9 and above?

Are they already reading proficiently but struggling with comprehension? Are you looking for level appropriate stories for your fourth grader to read? Are you tired of constantly searching for new books from the library or bookstore?

As a parent, finding new and engaging books your young reader likes can be challenging. Especially for older kids who don't enjoy reading. It requires constant trips to the bookstore or library, or repeatedly reading reviews online.

The Fourth Grade Reader is designed for elementary readers and mid-grade readers ages 9-11. The collection includes 12 unique stories of magic, family, nature, adventure and more!

This collection focuses on age-appropriate social-emotional skills, promotes problem-solving and critical thinking, and engages your child's imagination.

Each short story is divided into chapters that mimic longer chapter books.The stories use fourth-grade level sight words and easy to decipher new words along with some more challenging new words.The stories can be read in any order!The stories cover a wide range of demographics and family types and are relatable to kids today!At the front of the book, adults and readers will find questions and prompts to promote reading comprehension.Each story includes specific reading comprehension and thought-provoking questions for your child.

In addition to language and literacy skills, listening to stories develops critical thinking, problem-solving, and comprehension skills and promotes the ability to recall and repeat information and details.

The wide range of stories included in the book ensures every child will find characters and tales that represent them and allow them to meet new people and learn about new cultures, animals, and places!

The Fourth Grade Reader will thrill and captivate you from beginning to end.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing key Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as electricity, science, and technology.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 11 (Grades 4 and 5) who are confident readers ready for a challenge.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing key Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as knights, castles, and medieval times.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 11 (Grades 4 and 5) who are confident readers ready for a challenge.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.
- Building knowledge while progressing key Grades 4 and 5 reading skills.
- Developing subject vocabulary on topics such as mysterious monsters, the evidence for their existence, and apparent sightings of these creatures.
- Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 11 (Grades 4 and 5) who are confident readers ready for a challenge.

Everything is changing in Stan's life. And he does not like this a bit. Gran Jenn passed away. Then his dad lost his job. And now his best pal, Tom, is moving to Madrid. But Tom is leaving Stan in good hands. When he asks Stan to finish a last task for him, Tom has bigger plans for his best pal.

What can Tom's last task be? Will Stan solve the puzzle Tom left behind and finish the task?

• Irregular - taught: 1,299 words, 16 unique words, 19.6% of the word count. (a, the, to, are, do, of, does, from, they, was, you, have, says, there, what, Mrs.)
• Short vowels: 1,902 words, 133 unique words, 31.7% of the word count.
• Blends: 1,099 words, 101 unique words, 18.3% of the word count.
• Digraphs: 551 words, 68 unique words, 9.2% of the word count.
• FLSZ: 273 words, 29 unique words, 4.5% of the word count.
• Double consonants: 44 words, 9 unique words, 0.7% of the word count.
• -ng, -nk: 117 words, 23 unique words, 1.9% of the word count.
• -all: 45 words, 7 unique words, 0.7% of the word count.
• Open syllables: 416 words, 9 unique words, 6.9% of the word count.
• Silent e: 9 words, 1 unique word, 0.1% of the word count.
• Ctr r: 107 words, 3 unique words, 1.8% of the word count.
• Vowel teams: 86 words, 9 unique words, 1.4% of the word count.
• Y vowel: 26 words, 3 unique words, 0.4% of the word count.
• Suffix -ing: 16 words, 15 unique words, 0.3% of the word count.
• Compound: 17 words, 4 unique words, 0.3% of the word count.
• Multisyllabic: 69 words, 21 unique words, 1.1% of the word count.
• Irregular - other: 40 words, 6 unique words, 0.7% of the word count.
• Pre-teach words: 9 words, 3 unique words, 0.1% of the word count.

Finding engaging decodable books that match young readers' skills can be challenging, but the right selections can foster a lifelong love of reading.

Simple Words Books help striving readers to become better readers. Our books are designed to enhance fluency, accuracy, vocabulary, and comprehension while building confidence. Each carefully chosen word ensures success, not frustration.

Our big-kid chapter books align with UFLI and many major reading programs. Explore free downloadable comprehension and decodable phonics workbooks on our website.

DK Super Readers take children on a journey through the wonderful world of nonfiction: traveling back to the time of dinosaurs, learning more about animals, exploring natural wonders and more, all while developing vital nonfiction reading skills and progressing from first words to reading confidently.

The DK Super Readers series can help your child practice reading by:

- Covering engaging, motivating, curriculum-aligned topics.Building knowledge while progressing key - Grades 4 and 5 reading skills.Developing subject vocabulary on topics such as artificial intelligence, - science, and technology.Boosting understanding and retention through comprehension quizzes.

Each title, which has been leveled using MetaMetrics(R) The Lexile Framework for Reading, integrates science, geography, history, and nature topics so there's something for all children's interests. The books and online content perfectly supplement core literacy programs and are mapped to the Common Core Standards. Children will love powering up their nonfiction reading skills and becoming reading heroes.

DK Super Readers Level 4 titles are visually engaging, full of fun facts, and challenge young readers to broaden their subject knowledge while practising nonfiction reading skills. Perfect for children ages 9 to 11 (Grades 4 and 5) who are confident readers ready for a challenge.

Shark: Apex Predator is a beautifully designed, high-quality nonfiction reader all about some of the oceans' most fearsome hunters.

The engaging text has been carefully translated into Modern Standard Arabic (MSA).

A motivating introduction to using essential nonfiction reading skills.

Children will love to find out about all kinds of sharks and their prey.