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3rd Grade Science Fiction AR Books

AR levels 3–4 · 69 books

These 69 3rd grade science fiction AR books explore futuristic settings, technology, and ideas through stories calibrated to the 3rd grade reading level. Great for sparking curiosity about science and the future.

The Message (Animorphs #4) book cover

The Message (Animorphs #4)

K. A. Applegate

AR 3.8 4 pts 3.6h
Science Fiction friendshipcourage

Cassie keeps having strange ocean dreams—so is Tobias—and a mysterious voice is calling for help. When the Animorphs realize the message might be real, they risk a dangerous mission into open water, morphing sea creatures to investigate. Fast-paced action, animal morphs, and high-stakes choices keep readers turning pages as the team decides whether the call is a rescue plea or a trap. Perfect for middle-grade sci-fi fans who like teamwork, suspense, and creatures of all kinds.

The Invasion book cover

The Invasion

Katherine Applegate

AR 3.7 3 pts 3.6h
Science Fiction couragefriendship

When Jake and his friends witness a dying alien’s crash, they’re given an incredible secret weapon: the power to morph into any animal they touch. With a hidden alien force quietly taking over human minds, the kids must decide if they’re brave enough to fight back while keeping their new abilities a secret. Fast-paced action, humor, and real moral choices make this a gripping start to the Animorphs saga. Ideal for middle graders who like sci-fi, teamwork, and high-stakes adventures.

The Secret (Animorphs #9) book cover

The Secret (Animorphs #9)

K. A. Applegate

AR 3.8 5 pts 4.0h
Science Fiction environmentalismteamwork

Strange activity in the woods behind Cassie’s house hints at a dangerous Yeerk plan, and the Animorphs realize their secret refuge—and Ax’s survival—may be at risk. Cassie leads the team on a mission to uncover a bogus logging operation and protect the wildlife she loves, all while keeping their identities hidden. Fast-paced action, clever animal morphs, and tight teamwork drive this installment. Great for middle-grade readers who enjoy sci-fi adventure, animal facts, and high-stakes undercover missions.

Ricky Ricotta's Giant Robot Vs. the Voodoo Vultures from Venus (Ricky Ricotta) book cover

Ricky Ricotta's Giant Robot Vs. the Voodoo Vultures from Venus (Ricky Ricotta)

Dav Pilkey

AR 3.5 0.5 pts 20m
Science Fiction friendshipcourage

Ricky Ricotta is a small mouse with a very big best friend—a giant robot who helps keep their town safe. When a flock of villainous vultures from Venus swoops in with a sneaky plan, Ricky and his robot must team up to stop the trouble. Short chapters, lots of humor, and dynamic illustrations make this a confidence-boosting read for new chapter-book readers. Kids love the fast action, silly sci‑fi villains, and the strong friendship at the heart of the story.

The Visitor (Animorphs #2) book cover

The Visitor (Animorphs #2)

K. A. Applegate

AR 3.7 5 pts 4.1h
Science Fiction courageidentity

Rachel and her friends have the secret ability to morph into animals after a chance encounter with a dying alien. When they learn their assistant principal is controlled by a parasitic Yeerk, Rachel volunteers to infiltrate his home and gather intel. The mission tests her courage and judgment as the stakes rise and the enemy closes in. Fast-paced action, cool animal transformations, and high-stakes suspense make this installment a favorite for middle-grade sci-fi fans.

The Stranger (Animorphs #7) book cover

The Stranger (Animorphs #7)

K. A. Applegate

AR 3.7 5 pts 4.5h
Science Fiction courageloyalty and friendship

Rachel and the Animorphs are fighting a secret alien invasion, even as her own life is pulled in a new direction by her dad’s plan to move away. When a powerful being called the Ellimist appears, he offers the team an impossible choice: escape with their families to safety or stay and keep risking everything for Earth. This fast-paced, high-stakes sci‑fi adventure blends action with big questions about loyalty and destiny. Perfect for middle-grade readers who like teamwork, tough decisions, and thrilling morph-powered battles.

The Predator book cover

The Predator

Katherine Applegate

AR 3.8 4 pts 3.8h
Science Fiction friendshipcourage

Marco never wanted to be an Animorph, but when the Yeerks escalate their plans, he’s pulled into a risky mission that could change everything. Told with Marco’s trademark humor and quick wit, this fast-paced sci‑fi adventure blends high-stakes action with laugh-out-loud moments. Readers see what it takes to stand up for friends and make tough choices when danger is everywhere. Perfect for fans who like shapeshifting, sneaking behind enemy lines, and a hero who jokes even when the pressure’s on.

Animorphs book cover

Animorphs

K. A. Applegate

AR 3.8 4 pts 4.0h
Science Fiction teamworkidentity

Animorphs follows five ordinary kids who gain the power to morph into any animal they touch, and secretly use that ability to resist a hidden alien invasion. With fast-paced action, humor, and cliffhangers, the series explores what it means to fight back when the odds seem impossible. It’s a great fit for middle-grade readers who like sci-fi, teamwork, and animal facts woven into high-stakes adventures. Kids enjoy the rotating narrators, moral dilemmas, and the creative ways the team uses different animal forms.

The Invasion (Animorphs #1) book cover

The Invasion (Animorphs #1)

K. A. Applegate

AR 3.7 5 pts 4.0h
Science Fiction friendshipcourage

Five ordinary kids stumble upon a dying alien and inherit an incredible secret: the power to morph into any animal they touch. With their new abilities, they become the Animorphs, a hidden line of defense against a quiet alien invasion no one else can see. Fast-paced, funny, and suspenseful, this series opener hooks readers with cliffhangers and high-stakes action. Great for grades 4–8, especially fans of sci-fi, animals, and team-driven adventures.

June 29, 1999 book cover

June 29, 1999

David Wiesner

AR 3.5 0.5 pts
Science Fiction curiosity and experimentationcause and effect

When enormous vegetables begin falling from the sky, towns across the country are baffled. A curious young scientist wonders if her own experiment—launched days earlier—might somehow be responsible. Through playful headlines and detailed, cinematic illustrations, the story invites kids to connect clues and think like investigators. It’s a funny, imaginative read that delights fans of tall tales and science-y what-ifs.

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8) book cover

Ricky Ricotta's Mighty Robot vs. the Naughty Nightcrawlers from Neptune (Ricky Ricotta's Mighty Robot #8)

Dav Pilkey

AR 3.4 0.5 pts 22m
Science Fiction friendshipteamwork

Ricky Ricotta and his Mighty Robot can’t wait to play in the awesome fort they just built—until a visit from Cousin Lucy and a sneaky space worm from Neptune turn everything upside down. When Nimrod Nightcrawler tunnels trouble right under their noses, Ricky and his robot pal must think fast and work together to save the day. Packed with colorful art, mini comics, and tons of laughs, this fast-paced chapter book is perfect for newly independent readers. Kids love the wild sci‑fi action, goofy humor, and the big-hearted friendship between a small mouse and his gigantic robot.

The Departure (Animorphs #19) book cover

The Departure (Animorphs #19)

K. A. Applegate

AR 3.8 5 pts 3.8h
Science Fiction morality and ethicsidentity

Cassie is starting to question the cost of fighting a secret alien war. After a tough mission, she decides she can’t be an Animorph anymore—until a human-Controller named Karen discovers her secret. Trapped far from help, Cassie must rely on her wits and her conscience to keep everyone safe. This tense, thoughtful entry explores tough choices and compassion, making it a favorite for readers who like action with heart.

Bozo the clone book cover

Bozo the clone

Dan Greenburg

AR 3.6 1 pts 56m
Science Fiction identityresponsibility

Zack thinks he’s having an ordinary day—until a perfect copy of him shows up and starts causing trouble. Suddenly teachers, friends, and even his family can’t tell who’s who, and Zack has to outsmart his own double before things spin out of control. Fast-paced chapters, lots of laughs, and a light sci‑fi twist make this an easy pick for reluctant readers. Fans of funny, slightly spooky school stories will zip right through it.

How I fixed the year 1000 problem book cover

How I fixed the year 1000 problem

Dan Greenburg

AR 3.3 1 pts 39m
Science Fiction time travelhumor

Zack finds himself tangled up with a medieval mix-up that sends him back around the year 1000—where people fear the world might end and a silly mistake could change history. With his trademark humor and fast-paced adventures, Zack has to think on his feet to fix a very old problem. Short chapters, funny situations, and just-right suspense make this a great pick for newer chapter-book readers. Kids who enjoy time travel and goofy mishaps will have a blast with this story.

Obi-Wan's Foe book cover

Obi-Wan's Foe

Jane B. Mason

AR 3 0.5 pts
Science Fiction braverygood vs. evil

This early reader follows Jedi Knight Obi-Wan Kenobi as he faces a dangerous enemy in the Star Wars galaxy. Short chapters, clear sentences, and dynamic movie-inspired action make it great for kids beginning to read independently. Fans enjoy seeing familiar characters, lightsaber duels, and clever problem-solving without heavy text. A solid choice for young Star Wars enthusiasts building confidence and fluency.

The Exposed (Animorphs #27) book cover

The Exposed (Animorphs #27)

K. A. Applegate

AR 3.9 3 pts 2.6h
Science Fiction teamworkloyalty

When the Animorphs learn their secret android allies, the Chee, are in grave danger, they dive into a rescue mission that leads far beneath the ocean’s surface. Facing crushing depths, strange sea life, and relentless Yeerk threats, the team must use every morph and every ounce of teamwork to keep the Chee’s biggest secrets safe. Fast-paced action and high-stakes sci-fi make this an exciting read for middle-grade fans. Perfect for readers who enjoy teamwork, clever problem-solving, and adventure with a touch of humor.

The Separation (Animorphs #32) book cover

The Separation (Animorphs #32)

K. A. Applegate

AR 3.9 4 pts 3.8h
Science Fiction identityduality

When a risky morph goes wrong, Rachel splits into two very different versions of herself—one timid and one dangerously reckless. As the Animorphs face the ever-pressing Yeerk threat, Rachel must find a way to reconcile both halves before they tear the team—and their mission—apart. Fast-paced action blends with humor and character-driven drama as Rachel’s identity crisis tests her courage and judgment. Great for middle-grade readers who enjoy sci-fi adventures with heart and big questions about who we are.

The Suspicion (Animorphs #24) book cover

The Suspicion (Animorphs #24)

K. A. Applegate

AR 3.9 4 pts 3.3h
Science Fiction teamworkresponsibility

Cassie and the Animorphs run into the Helmacrons—furious, inch‑tall aliens who think Cassie stole their ship. When the Helmacrons shrink the team to their size, a routine mission turns into a wild, small‑scale scramble with big consequences. Packed with humor, rapid‑fire action, and inventive sci‑fi twists, this adventure highlights teamwork and quick thinking under pressure. Great for middle‑grade readers who like fast, funny alien stories with high stakes and shapeshifting heroes.

Tut, Tut book cover

Tut, Tut

Jon Scieszka

AR 3.7 1 pts 44m
Science Fiction time travelfriendship

When the Time Warp Trio opens their mysterious book, Joe, Sam, and Fred are zapped back to ancient Egypt and straight into a pyramid-sized problem. Dodging mummies, deciphering hieroglyphs, and trying not to upset any pharaohs, the boys must use their wits and teamwork to get home. Packed with humor and fast-paced action, this adventure slips real history into a laugh-out-loud story. Great for middle-grade readers who enjoy short, funny chapter books with a historical twist.

Commander Toad and the Intergalactic Spy book cover

Commander Toad and the Intergalactic Spy

Jane Yolen

AR 3.3 0.5 pts 13m
Science Fiction teamworkbravery

Commander Toad and his crew aboard the Star Warts blast off on a top-secret mission involving a mysterious intergalactic spy. Along the way, the team must use quick thinking and teamwork to figure out who to trust. Simple chapters, playful wordplay, and black-and-white illustrations make this a fun pick for emerging readers. Kids enjoy the light suspense, silly space puns, and the brave-but-bouncy hero leading the crew.

A Wrinkle in Time: The Graphic Novel book cover

A Wrinkle in Time: The Graphic Novel

Madeleine L'Engle

AR 3.7 2 pts 1.4h
Science Fiction family lovecourage

Hope Larson’s graphic novel adaptation reimagines Madeleine L’Engle’s classic for visual readers, bringing Meg Murry, Charles Wallace, and Calvin O’Keefe’s journey vividly to life. When Meg’s father goes missing, the trio ‘tesser’ across space and time with the mysterious Mrs. Who, Mrs. Whatsit, and Mrs. Which to confront a creeping darkness. Dynamic artwork makes big sci‑fi ideas clear and exciting while keeping the heart of the original story—family, courage, and love—front and center. Perfect for grades 4–8, especially readers who enjoy fast-paced adventures and graphic novels.

Aliens for lunch book cover

Aliens for lunch

Jonathan Etra

AR 3.2 1 pts 39m
Science Fiction friendshipcourage

When a tiny space hero pops back into Richard’s life right around lunchtime, he discovers that not all classmates are what they seem. Together they must sniff out a sneaky alien troublemaker before a small problem turns into a big, planet-sized mess. Short chapters, lots of humor, and cartoon-style action make this a fun, confidence-building read for newer chapter-book readers. Kids enjoy the fast pace, silly sci‑fi gadgets, and the idea of an ordinary kid saving the day.

Animorphs #1: The Invasion book cover

Animorphs #1: The Invasion

K. A. Applegate

AR 3.8 5 pts 4.1h
Science Fiction friendshipcourage

Five ordinary kids witness a crashed alien ship and learn a terrifying truth: Earth is under a secret invasion. Gifted with the power to morph into animals, they become the only line of defense against an enemy that can hide in plain sight. Fast-paced, funny, and suspenseful, this series opener blends sci-fi action with real-world friendship and courage. Great for grades 4–8 who like team-based adventures and high-stakes missions without heavy gore.

Animorphs #3: The Encounter book cover

Animorphs #3: The Encounter

Katherine A. Applegate

AR 3.7 5 pts 4.0h
Science Fiction identitycourage

Tobias and his friends can morph into animals to fight a secret alien invasion, but Tobias is now stuck as a red-tailed hawk. As the team targets a dangerous Yeerk operation, he has to balance human memories with a predator’s instincts. It’s a fast, high-stakes sci-fi adventure with lots of animal action and big questions about identity and choice. Perfect for middle-grade readers who like teamwork, suspense, and quick, cliffhanger chapters.

Commander Toad and the voyage home book cover

Commander Toad and the voyage home

Jane Yolen

AR 3.2 0.5 pts 10m
Science Fiction explorationhome and belonging

Commander Toad and his quirky crew set course through the galaxy for one last mission—finding their way home. Packed with spacey puns, gentle parody, and lively illustrations, this early chapter book makes science fiction fun and friendly for new readers. Short chapters and lots of humor keep kids turning pages while building confidence. Perfect for grades 1–3 who enjoy adventure with a silly twist.

Company's Going book cover

Company's Going

Arthur Yorinks

AR 3.3 0.5 pts
Science Fiction friendshiphospitality and manners

In this humorous sequel to Company’s Coming, a suburban couple reconnects with their alien friends and find themselves swept into an out-of-this-world visit. Silly mishaps, snappy dialogue, and David Small’s expressive art keep the pages turning. Perfect for read‑alouds, it invites young readers to think about hospitality and seeing the world (and galaxy) from someone else’s point of view. Great for kids who enjoy funny, fast-moving picture books with a sci‑fi twist.

Cosmo and the robot book cover

Cosmo and the robot

J. Brian Pinkney

AR 3.2 0.5 pts
Science Fiction friendshipproblem-solving

Cosmo lives with his family on a Mars outpost, where his closest companion is a helpful little robot. When something goes wrong far from the safety of the habitat, Cosmo has to stay calm, think like an engineer, and figure out how to help. Short, suspenseful scenes and bold, energetic art make this a fun read-aloud for young space fans. Kids enjoy the mix of science-fiction adventure and the warm friendship between a boy and his bot.

Dude, where's my spaceship? book cover

Dude, where's my spaceship?

Dan Greenburg

AR 3.5 1 pts 1.0h
Science Fiction friendshipfitting in

Three alien kids crash-land on Earth and discover their spaceship has gone missing. To get home, they must blend in with humans, navigate strange customs, and track down their invisible ride without attracting attention. Fast-paced chapters, lots of humor, and quirky illustrations make this a fun pick for new chapter-book readers. Great for kids who like sci-fi adventures with a silly twist.

Fat men from space book cover

Fat men from space

Daniel Manus Pinkwater

AR 3.9 1 pts 59m
Science Fiction humoraliens and outer space

A boy leaves the dentist with a strange filling that starts picking up radio messages—from fat men from outer space! Soon, Earth is visited by hungry aliens determined to collect every last piece of junk food. Packed with Pinkwater’s trademark silliness and fast-paced chapters, this short sci-fi romp hooks newly confident readers. It’s a great pick for kids who like absurd humor, aliens, and quick reads that spark big laughs.

Food chain frenzy book cover

Food chain frenzy

Anne Capeci, Joanna Cole, Capeci Anne, Éric Chevreau

AR 3.9 1 pts 1.1h
Science Fiction ecosystems and interdependencecuriosity and inquiry

Ms. Frizzle takes the class on a wild ride to explore how energy moves through food chains and food webs. From producers to consumers and decomposers, the kids see firsthand how every creature depends on others to survive. Packed with science facts, humor, and adventure, this Magic School Bus chapter book makes ecology easy to understand. Great for young readers who enjoy animals, nature, and fast-paced field trips.

Geronimo Stilton #7: Dinosaurs in Action! book cover

Geronimo Stilton #7: Dinosaurs in Action!

Geronimo Stilton

AR 3.2 0.5 pts 30m
Science Fiction teamworkcourage

When the sneaky Pirate Cats strand Professor Volt in the age of dinosaurs, Geronimo and his friends race back through time to bring him home. This colorful graphic novel blends slapstick humor with dino-sized danger and clever problem-solving. Short bursts of text and lively panels make it a great pick for developing readers who love adventure. Fans of Geronimo’s time-travel capers will enjoy the fast pace, teamwork, and prehistoric thrills—without any scary content.

Geronimo Stilton Graphic Novels #14: The First Mouse on the Moon book cover

Geronimo Stilton Graphic Novels #14: The First Mouse on the Moon

Geronimo Stilton

AR 3.5 0.5 pts 37m
Science Fiction time travelteamwork

Geronimo and his cousin Trap race through time to protect the 1969 Apollo 11 moon landing from the mischievous Pirate Cats. Packed with fast-paced panels, jokes, and clever twists, this graphic novel blends science-y fun with a goofy, good-versus-bad showdown. It’s a great pick for elementary and middle-grade readers who like adventure, history-with-a-twist, and humor. Fans of the Geronimo Stilton universe and space stories will zoom right through it.

Geronimo Stilton Graphic Novels Vol. 14 book cover

Geronimo Stilton Graphic Novels Vol. 14

Geronimo Stilton

AR 3.2 0.5 pts 28m
Science Fiction teamworkcourage

Geronimo and his cousin Trap blast into a zany race through history when the Pirate Cats try to ruin the Apollo 11 moon landing. Set in 1969, this fast-paced graphic novel mixes real-world space history with slapstick humor and clever twists. Short chapters, colorful panels, and plenty of action make it a great pick for readers moving up to longer stories. Perfect for fans of adventure, science, and silly villains.

Geronimo Stilton Graphic Novels Vol. 9 book cover

Geronimo Stilton Graphic Novels Vol. 9

Geronimo Stilton

AR 3.2 0.5 pts 24m
Science Fiction teamworktime travel

Geronimo Stilton zooms through time to stop the Pirate Cats from rewriting history. In this adventure, a scheme to tamper with early printing threatens the future of books themselves, and Geronimo must use quick thinking and teamwork to set things right. The graphic novel format, fast-paced humor, and clever historical touches make it a fun pick for reluctant and avid readers alike. Perfect for kids who enjoy action, history with a twist, and laugh-out-loud moments.

Hang a left at Venus book cover

Hang a left at Venus

Dan Greenburg

AR 3.6 1 pts 52m
Science Fiction friendshiphelping others

In this funny sci‑fi chapter book from The Zack Files, Zack meets some very lost visitors from outer space and winds up helping them find their way home. Short chapters, big laughs, and cartoon-style illustrations keep new readers turning the pages. Kids enjoy the wild what-if scenario, the quick pacing, and Zack’s down-to-earth voice as strange things happen in everyday New York City. Great for fans of humorous adventures and light science fiction.

Hedgie Blasts Off! book cover

Hedgie Blasts Off!

Jan Brett

AR 3.6 0.5 pts
Science Fiction perseverancecourage

On a faraway planet, Hedgie dreams of becoming an astronaut even though he’s only the space center’s janitor. When a powerful geyser threatens the mission, Hedgie gets his chance to help. With determination and clever problem-solving, this small hero proves he’s ready for big adventures. Jan Brett’s detailed illustrations and playful borders invite young readers to explore every page.

Hey kid, want to buy a bridge book cover

Hey kid, want to buy a bridge

Jon Scieszka

AR 3.9 1 pts 1.1h
Science Fiction friendshipingenuity

When Joe, Sam, and Fred open their mysterious book, they’re whisked back to old New York at the time the Brooklyn Bridge is being built. The boys have to dodge swindlers, find their way through bustling city streets, and figure out how to get home. Fast-paced chapters, jokes, and history tidbits make this a fun pick for fans of adventure and humor. Great for grades 3–5 and especially engaging for reluctant readers.

In the Whale book cover

In the Whale

Judith C. Greenburg

AR 3.6 1 pts 52m
Science Fiction curiosityteamwork

Cousins Andrew and Judy—and their chatty robot Thudd—find themselves accidentally swallowed by a blue whale during an underwater mishap. As they explore the giant’s watery world from the inside, they use science know-how, quick thinking, and teamwork to figure out what to do next. Packed with kid-friendly facts, humor, and lively illustrations, this early chapter book makes science feel like an adventure. Great for young readers who enjoy fast-paced stories and curious discoveries.

Invasion book cover

Invasion

Katherine A. Applegate

AR 3.8 4 pts 3.7h
Science Fiction friendshipcourage

Five ordinary kids witness a strange light in the sky and stumble into a secret alien invasion of Earth. Given the power to morph into animals, they must decide how—and whether—to fight back while keeping their new abilities hidden. Fast-paced action, first-person voice, and high-stakes choices pull readers in. Great for sci-fi fans who like teamwork, suspense, and animal transformations.

Invasion, The book cover

Invasion, The

Katherine Applegate, Josh Gregory

AR 3.7 5 pts 4.1h
Science Fiction friendshipcourage

When a group of ordinary kids stumbles upon a dying alien, they’re given an incredible power: the ability to morph into any animal they touch. With a secret alien invasion threatening their town, Jake and his friends must learn to use their new abilities while keeping their identities hidden. Fast-paced action, animal transformations, and high-stakes choices keep readers turning pages. Perfect for middle-grade sci-fi fans who like teamwork, suspense, and big moral questions without heavy content.

Mars needs moms! book cover

Mars needs moms!

Berkeley Breathed

AR 3.1 0.5 pts
Science Fiction family lovegratitude

When Martians come to Earth looking for the ultimate resource—moms—a boy learns just how much his own mother means to him. With witty humor and lively illustrations, this spacey adventure turns everyday parent–child frustrations into a heartfelt appreciation. Kids enjoy the zany Martians, fast-paced rescue, and the warm reminder that love is out of this world.

Me Oh Maya book cover

Me Oh Maya

Jon Scieszka

AR 3.7 1 pts 41m
Science Fiction time travelfriendship

When the Time Warp Trio opens their mysterious book, Joe, Sam, and Fred land in the middle of an ancient Maya city filled with towering temples, ball courts, and baffling calendars. To get home, they have to use quick thinking and teamwork while navigating tricky customs and a few close calls. Packed with jokes and historical tidbits, this fast, funny adventure hooks reluctant readers and history buffs alike. Great for grades 2–5 who enjoy short, high-energy chapter books.

Micro Man book cover

Micro Man

Paul Kropp

AR 3.7 2 pts 1.6h
Science Fiction technology and ethicsfriendship

Micro Man follows a tech-savvy middle schooler whose skills with computers and gadgets earn him a big reputation—and unexpected trouble. When a clever plan goes too far, he has to rely on quick thinking, loyal friends, and a bit of courage to set things right. Fast-paced chapters, accessible language, and lots of tech intrigue make this a great pick for reluctant readers. Kids enjoy the high-stakes pranks, relatable school drama, and the message about using talents responsibly.

Msb : Science Chapter Book #17 Food Chain Frenzy book cover

Msb : Science Chapter Book #17 Food Chain Frenzy

Anne Capeci

AR 3.9 1 pts 1.2h
Science Fiction ecosystemsinterdependence

Arnold dreads another wild ride with Ms. Frizzle—especially with his know‑it‑all cousin Janet tagging along. But when the Magic School Bus zooms into the world of food chains and food webs, the class discovers how every plant and animal is connected. Lively adventures and bite‑sized science facts make ecosystems easy to understand. Perfect for curious readers who like humor, action, and real science mixed together.

Prophecy book cover

Prophecy

Katherine A. Applegate

AR 3.9 4 pts 3.8h
Science Fiction friendshipcourage

In this tense Animorphs adventure, a group of ordinary teens with the power to morph animals face another critical mission in their secret war against a hidden alien invasion. A mysterious message and an old promise pull the team into dangerous territory where trust and tough choices matter more than ever. Action, humor, and big moral questions keep pages turning as the Animorphs balance school, friendships, and saving the world. Ideal for middle-grade readers who like fast-paced sci-fi with heart.

Ricky Ricotta's Mighty Robot Vs. the Jurassic Jackrabbits from Jupiter book cover

Ricky Ricotta's Mighty Robot Vs. the Jurassic Jackrabbits from Jupiter

Dav Pilkey

AR 3.5 0.5 pts 22m
Science Fiction friendshipteamwork

It’s Ricky’s birthday, but the party takes a wild turn when General Jackrabbit and a squad of Robo-Rabbits from Jupiter try to take over Earth. With quick thinking and lots of heart, Ricky teams up with his Mighty Robot to save the day. Short chapters, tons of action, and laugh-out-loud humor make this a great fit for newly independent readers. Kids love the goofy villains, bold illustrations, and the feel-good teamwork between a boy and his best robot friend.

Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6) book cover

Ricky Ricotta's Mighty Robot vs. the Stupid Stinkbugs from Saturn (Ricky Ricotta's Mighty Robot #6)

Dav Pilkey

AR 3.6 1 pts 27m
Science Fiction friendshipteamwork

Ricky Ricotta and his Mighty Robot are the best of friends—but it’s not always easy when your buddy is giant-sized! Ricky wishes the Robot had someone his own size to play with, just as a new outer-space threat buzzes toward Earth. Packed with bright full-color art, mini-comics, and nonstop action, this adventure is perfect for newly independent readers. Kids love the silly humor, big-hearted friendship, and page-turning battles against over-the-top villains.

See You Later, Gladiator book cover

See You Later, Gladiator

Jon Scieszka

AR 3.8 1 pts 1.0h
Science Fiction friendshipteamwork

Joe, Sam, and Fred are blasted back to ancient Rome when the Book sends them straight into the world of gladiators and emperors. With their usual quick wit and bickering teamwork, the Time Warp Trio must outsmart dangerous opponents and find a way home. Fast-paced chapters, humor, and plenty of history-packed action make this an engaging pick for young readers just stepping into longer fiction. Kids love the slapstick trouble, clever escapes, and the feeling of learning cool facts without it ever slowing down the fun.

Stanley in Space book cover

Stanley in Space

Jeff Brown

AR 3.9 1 pts 1.2h
Science Fiction space explorationfamily teamwork

When a mysterious message from a distant planet reaches Earth, the President chooses Stanley Lambchop and his family to make first contact. The ever-resourceful Flat Stanley blasts off on a light, funny sci‑fi adventure filled with odd aliens and out-of-this-world problem-solving. Short chapters, playful humor, and appealing illustrations make it a great pick for newly independent readers. Kids enjoy the mix of space excitement, family teamwork, and Stanley’s can‑do spirit.

The Animorphs #2: the Visitor book cover

The Animorphs #2: the Visitor

K. A. Applegate

AR 3.9 5 pts 3.7h
Science Fiction courageidentity

Rachel and her friends have the power to morph into any animal they touch, and they’re using it to fight a secret alien invasion. When the group suspects their assistant principal is under alien control, Rachel agrees to go undercover and get close to the enemy. Daring spy work, heart-pounding escapes, and tough choices test her courage and the team’s trust. A fast, action-packed sci‑fi adventure perfect for middle-grade readers who love animals and high-stakes missions.

The Capture (Animorphs Graphix #6) book cover

The Capture (Animorphs Graphix #6)

K. A. Applegate, Michael Grant

AR 3.1 2 pts 1.1h
Science Fiction teamworkidentity

Jake and the Animorphs think they’ve finally found the Yeerks’ newest stronghold—and a risky way to strike back. Their mission demands tight teamwork, quick morphs, and split-second choices as the enemy’s influence grows closer to home. This full-color graphic novel adaptation packs fast-paced sci-fi action with themes of trust, leadership, and what it means to stay yourself under pressure. Perfect for middle-grade readers who love high-stakes adventures and accessible, visual storytelling.

The Conspiracy book cover

The Conspiracy

Katherine Applegate

AR 3.9 4 pts 3.7h
Science Fiction family vs. dutysecrecy and identity

Jake’s family must travel out of town for his great-grandfather’s funeral, but that means taking his older brother—who is secretly controlled by a Yeerk—far from a feeding pool. As pressure mounts at home and from the Yeerks, Jake is forced to balance family loyalty with the impossible choices of leading the Animorphs. High-stakes secrets, tense close calls, and tough leadership decisions drive this sci‑fi adventure. Fans of Animorphs will appreciate the personal stakes and fast pace.

The Encounter book cover

The Encounter

K. A. Applegate

AR 3.7 5 pts 3.8h
Science Fiction identityfriendship

In this third Animorphs adventure, Tobias is trapped in the body of a red‑tailed hawk after exceeding the two‑hour morph limit. When he uncovers a dangerous secret about the invading Yeerks, he must balance human loyalty with a predator’s instincts. Fast pacing, action, and quiet moments of reflection make it a compelling read for middle graders who like sci‑fi with heart. Kids enjoy the high-stakes missions, animal morphs, and the series’ mix of teamwork and tough choices.

The Giver Graphic Novel book cover

The Giver Graphic Novel

Lois Lowry

AR 3.8 2 pts 1.3h
Science Fiction conformity vs. individualitymemory and truth

This graphic novel adaptation of Lois Lowry’s classic brings Jonas’s carefully controlled community to life with striking, cinematic artwork by P. Craig Russell. As Jonas is chosen for special training, he begins to uncover truths about memory, emotion, and choice that challenge everything he’s been taught. The visuals make the story accessible to newer readers while preserving the powerful questions at its heart. Perfect for middle schoolers who enjoy dystopian tales and graphic storytelling.

The Invasion book cover

The Invasion

Katherine Applegate

AR 3.7 5 pts 4.0h
Science Fiction friendshipcourage

When five friends witness a crash and meet a dying alien, they’re given an incredible power: the ability to morph into any animal they touch. Suddenly they’re pulled into a hidden battle and must use their new abilities to stay one step ahead of a secret alien threat. Fast-paced and full of cliffhangers, this series opener blends action, humor, and heart. It’s great for middle-grade readers who like team adventures, animals, and high-stakes sci‑fi.

The Journey (Animorphs #42) book cover

The Journey (Animorphs #42)

K. A. Applegate

AR 3.9 3 pts 3.1h
Science Fiction teamworkcourage

Rachel and the Animorphs face a problem they can barely see: the tiny, relentless Helmacrons are back and after the morphing cube. A mishap leaves the minuscule aliens inside Marco, forcing the team into a daring, mini-sized rescue mission. With fast action, humor, and high-stakes sci-fi twists, this installment blends gross-out fun with teamwork and quick thinking. Great for middle-grade readers who like action, aliens, and big adventures with a comedic edge.

The Message (Animorphs Graphix #4) book cover

The Message (Animorphs Graphix #4)

K. A. Applegate, Michael Grant

AR 3.1 1 pts 1.2h
Science Fiction teamworkcourage

Cassie starts dreaming about a voice calling from the ocean—and Tobias is hearing it too. When strange wreckage washes ashore, the Animorphs suspect an alien ally may be reaching out for help. To investigate, they’ll have to risk new underwater morphs and work together against a hidden enemy. This fast, full-color graphic novel is great for middle-grade readers who like sci‑fi, teamwork, and high-stakes adventure.

The Message book cover

The Message

K. A. Applegate

AR 3.8 4 pts 3.8h
Science Fiction friendshipcourage

Cassie keeps having vivid dreams about the ocean—dreams that feel more like a call for help than simple nightmares. When Tobias admits he’s hearing the same voice, the Animorphs follow the message to the coast to investigate. With danger lurking beneath the waves and enemies always watching, they must decide whether this is a trap or a chance to help an ally. Fast-paced action, animal morphs, and high-stakes secrets make this a favorite for sci-fi fans.

The Message book cover

The Message

Katherine A. Applegate

AR 3.8 4 pts 3.5h
Science Fiction teamworkcourage

Cassie keeps hearing a strange call from the ocean, and she’s sure it isn’t just a dream. To investigate, the Animorphs morph into dolphins and head out to sea, where something—or someone—may need their help. Packed with fast-paced action, underwater adventure, and animal details, this installment raises the stakes while deepening the team’s bonds. Perfect for middle-grade readers who enjoy sci‑fi, teamwork, and creatures of the sea.

The Message book cover

The Message

Katherine Applegate

AR 3.8 4 pts 3.6h
Science Fiction friendshipcourage

When a strange, urgent call seems to echo from the ocean, Cassie and the Animorphs have to push their morphing skills in a whole new direction—underwater. Dodging danger from the Yeerks while learning to navigate the sea as dolphins, they race to uncover who is calling for help and why. Fast-paced action, humor, and teamwork drive this science-fiction adventure, perfect for middle-grade readers who like high stakes and animal powers. Fans enjoy the vivid morphing scenes, relatable characters, and the mix of mystery and ocean exploration.

The Planet of Okidians book cover

The Planet of Okidians

Thierry Gaudin, Christel Gonnard

AR 3.6 0.5 pts 30m
Science Fiction courageteamwork

An asteroid is on a collision course with the planet of the Okidians, and only the missing king can stop it. The Little Prince and Fox team up with Princess Okimi to uncover what happened and outsmart the Snake’s dark forces. This fast-paced graphic novel blends space adventure, mystery, and heart, with clear panels and accessible text perfect for middle-grade readers. Kids enjoy the high-stakes quest, clever teamwork, and the series’ mix of wonder and humor.

The Secret book cover

The Secret

K. A. Applegate

AR 3.8 5 pts 4.1h
Science Fiction environmental stewardshipcourage

Cassie and the Animorphs feel the Yeerks tightening the net around their secret hideout just as a new threat puts their local forest in danger. With the team under pressure, Cassie must rely on her instincts—and a surprisingly powerful, very smelly new morph—to outsmart the enemy. Fast-paced action, humor, and moral dilemmas make this entry a favorite for middle-grade readers. Great for kids who like animal transformations, teamwork, and high-stakes sci-fi adventures.

The Stranger book cover

The Stranger

Katherine Applegate

AR 3.7 5 pts 3.8h
Science Fiction teamworkcourage

Rachel, Marco, and Tobias morph into cockroaches to infiltrate the Yeerks’ underground city, where one wrong move could mean becoming a Taxxon’s next meal. When an all-powerful being called the Ellimist appears, the Animorphs are forced to weigh impossible choices about their future and the fate of Earth. Fast-paced action, high-stakes missions, and thoughtful questions about free will and responsibility keep readers turning pages. Great for middle graders who love sci-fi, secret resistance stories, and animal morphing adventures.

The Underground (Animorphs #17) book cover

The Underground (Animorphs #17)

K. A. Applegate

AR 3.8 5 pts 3.8h
Science Fiction courageethical dilemmas

Rachel narrates this high-stakes Animorphs mission where a bizarre discovery—ordinary oatmeal sending Yeerks into chaos—presents a dangerous new advantage. The team must weigh clever tactics against the cost to innocent human hosts controlled by the parasites. Their plan leads them back into the terrifying Yeerk pool, testing courage, teamwork, and conscience. Fast-paced and edgy, this installment hooks readers who like action, moral dilemmas, and daring escapes.

The Visitor: A Graphic Novel (Animorphs #2) book cover

The Visitor: A Graphic Novel (Animorphs #2)

K. A. Applegate, Michael Grant

AR 3.1 2 pts 1.5h
Science Fiction courageidentity

In this full-color graphic novel, Rachel and her friends are still getting used to their new ability to morph into animals—and the terrifying truth that alien parasites are secretly taking over Earth. Their only lead is Mr. Chapman, the assistant principal who may be hosting a powerful Yeerk, so Rachel takes on a risky mission to get closer to the truth. Fast-paced action, tense undercover moments, and clever animal morphs keep pages turning. Perfect for middle-grade readers who like sci-fi adventures, team dynamics, and bold, cinematic art.

Viking it & Liking it book cover

Viking it & Liking it

Jon Scieszka

AR 3.7 1 pts 57m
Science Fiction time travelfriendship

When Joe, Sam, and Fred repeat the word 'Thursday' near their magic book, they’re hurled into the age of Vikings—helmets, longships, and all. The Time Warp Trio has to use quick thinking and teamwork to handle tough warriors and unfamiliar customs. Fast-paced chapters, laugh-out-loud humor, and clever history tidbits make this an appealing pick for elementary readers. Great for kids who like adventure with a funny twist and just-right doses of real history.

Virtual Fred and the Big Dip book cover

Virtual Fred and the Big Dip

Vincent Courtney

AR 3.8 1 pts 1.2h
Science Fiction friendshiptechnology and virtual reality

A tech-loving kid brings a digital buddy named Fred into the real world, and the two dive into a wild day packed with gadgets, jokes, and a daredevil ride called the Big Dip. Fred’s virtual logic meets real-life rules, leading to funny mix-ups and quick-thinking fixes. Short chapters, lively humor, and a splash of sci‑fi make this a fun pick for emerging readers. Perfect for kids who like fast-paced adventures with a tech twist.

We're off to look for aliens book cover

We're off to look for aliens

Colin McNaughton

AR 3.2 0.5 pts
Science Fiction imaginationfamily

When a dad who writes picture books shares his newest tale, the family is whisked into a zany, rhyming quest to find aliens among the stars. Page after page bursts with silly creatures, surprising sightings, and playful asides that invite kids to look closely and laugh along. The book-within-a-book format makes it a fun read-aloud, perfect for young listeners who love space adventures and goofy humor. Great for K–3 readers who enjoy imaginative stories and lively illustrations.

Who Let the Dogs Out? book cover

Who Let the Dogs Out?

Hillary Homzie

AR 3.9 1 pts 1.3h
Science Fiction sibling teamworkidentity and doubles

Twins Barton and Nancy think they’ve found the perfect solution to their problems: let their alien clones handle the hard stuff—like scoring tickets to a hot rock concert. But when the look-alikes take things a little too literally, everyday errands turn into out-of-this-world chaos. Fast-paced chapters, comedy, and just the right touch of sci-fi keep readers turning pages. Great for kids who enjoy goofy mishaps, sibling teamwork, and stories where plans hilariously backfire.