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cover image of Captain Kidd's Crew Experiments with Sinking and Floating

Captain Kidd's Crew...

In the Science Lab (Series)

Mark Weakland Author
Troy Cummings Illustrator
(2021)

cover image of DO-4U the Robot Experiences Forces and Motion

DO-4U the Robot Experiences...

In the Science Lab (Series)

Mark Weakland Author
Michael Moran Illustrator
(2012)

cover image of Las burbujas flotan, las burbujas explotan/Bubbles Float, Bubbles Pop

Las burbujas flotan, las...

Science Starts (Series)

Mark Weakland Author
(2012)

cover image of Las semillas se plantan, las semillas crecen/Seeds Go, Seeds Grow

Las semillas se plantan, las...

Science Starts (Series)

Mark Weakland Author
(2012)

cover image of Los engranajes trabajan, las ruedas ruedan/Gears Go, Wheels Roll

Los engranajes trabajan, las...

Science Starts (Series)

Mark Weakland Author
(2012)

cover image of Los imanes atraen, los imanes repelen/Magnets Push, Magnets Pull

Los imanes atraen, los imanes...

Science Starts (Series)

Mark Weakland Author
(2012)

cover image of The Lonely Existence of Asteroids and Comets

The Lonely Existence of...

Adventures in Science (Series)

Mark Weakland Author
Carlos Aón Illustrator
(2020)

cover image of How Heavy?

How Heavy?

Wacky Comparisons (Series)

Mark Weakland Author
Bill Bolton Illustrator
(2019)

cover image of How Tall?

How Tall?

Wacky Comparisons (Series)

Mark Weakland Author
Igor Sinkovec Illustrator
(2013)

cover image of Who's Who at School

Who's Who at School

School Rules (Series)

Mark Weakland Author
Nina de Polonia - Nill Illustrator
(2020)

cover image of Yogi Bear's Guide to Animal Tracks

Yogi Bear's Guide to Animal...

Yogi Bear's Guide to the Great Outdoors (Series)

Mark Weakland Author
Christian Cornia Illustrator
(2020)

cover image of Yogi Bear's Guide to Bugs

Yogi Bear's Guide to Bugs

Yogi Bear's Guide to the Great Outdoors (Series)

Mark Weakland Author
Bryan David Beach Illustrator
(2020)

cover image of Yogi Bear's Guide to Plants

Yogi Bear's Guide to Plants

Yogi Bear's Guide to the Great Outdoors (Series)

Mark Weakland Author
Christian Cornia Illustrator
(2020)

cover image of Yogi Bear's Guide to Rocks

Yogi Bear's Guide to Rocks

Yogi Bear's Guide to the Great Outdoors (Series)

Mark Weakland Author
Bryan David Beach Illustrator
(2020)

cover image of Zoom!

Zoom!

Wile E. Coyote, Physical Science Genius (Series)

Mark Weakland Author
Paco Sordo Illustrator
(2020)

cover image of Armored Dinosaurs: Ranking Their Speed, Strength, and Smarts

Armored Dinosaurs: Ranking...

Dinosaurs by Design (Series)

Mark Weakland Author
(2019)

cover image of Baseball Records

Baseball Records

All-Time Sports Records (Series)

Mark Weakland Author
(2020)

cover image of Basketball Records

Basketball Records

All-Time Sports Records (Series)

Mark Weakland Author
(2020)

cover image of Duck-Billed Dinosaurs: Ranking Their Speed, Strength, and Smarts

Duck-Billed Dinosaurs:...

Dinosaurs by Design (Series)

Mark Weakland Author
(2019)

cover image of Extreme Sports Records

Extreme Sports Records

All-Time Sports Records (Series)

Mark Weakland Author
(2020)

cover image of Flying Reptiles: Ranking Their Speed, Strength, and Smarts

Flying Reptiles: Ranking...

Dinosaurs by Design (Series)

Mark Weakland Author
(2019)

cover image of Football Records

Football Records

All-Time Sports Records (Series)

Mark Weakland Author
(2020)

cover image of Hockey Records

Hockey Records

All-Time Sports Records (Series)

Mark Weakland Author
(2020)

cover image of Horned Dinosaurs: Ranking Their Speed, Strength, and Smarts

Horned Dinosaurs: Ranking...

Dinosaurs by Design (Series)

Mark Weakland Author
(2019)

cover image of Long-Necked Dinosaurs: Ranking Their Speed, Strength, and Smarts

Long-Necked Dinosaurs:...

Dinosaurs by Design (Series)

Mark Weakland Author
(2019)

cover image of Los dinosaurios blindados: clasificación por velocidad, fuerza e inteligencia

Los dinosaurios blindados:...

Dinosaurios por diseño (Series)

Mark Weakland Author
(2019)

cover image of Los dinosaurios carnívoros de dos patas: clasificación por velocidad, fuerza e ​inteligencia

Los dinosaurios carnívoros de...

Dinosaurios por diseño (Series)

Mark Weakland Author
(2019)

cover image of Los dinosaurios con cuernos: clasificación por velocidad, fuerza e inteligencia

Los dinosaurios con cuernos:...

Dinosaurios por diseño (Series)

Mark Weakland Author
(2019)

cover image of Los dinosaurios de cuello largo: clasificación por velocidad, fuerza e inteligencia

Los dinosaurios de cuello...

Dinosaurios por diseño (Series)

Mark Weakland Author
(2019)

cover image of Los dinosaurios pico de pato: clasificación por velocidad, fuerza e inteligencia

Los dinosaurios pico de pato:...

Dinosaurios por diseño (Series)

Mark Weakland Author
(2019)

cover image of Los reptiles voladores: clasificación por velocidad, fuerza e inteligencia

Los reptiles voladores:...

Dinosaurios por diseño (Series)

Mark Weakland Author
(2019)

cover image of Soccer Records

Soccer Records

All-Time Sports Records (Series)

Mark Weakland Author
(2020)

cover image of Two-Legged, Meat-Eating Dinosaurs: Ranking Their Speed, Strength, and Smarts

Two-Legged, Meat-Eating...

Dinosaurs by Design (Series)

Mark Weakland Author
(2019)

cover image of The Lonely Existence of Asteroids and Comets

The Lonely Existence of...

Adventures in Science (Series)

Mark Weakland Author
Carlos Aón Illustrator
(2012)

cover image of Gut Bugs, Dust Mites, and Other Microorganisms You Can't Live Without

Gut Bugs, Dust Mites, and...

Nasty (but Useful!) Science (Series)

Mark Weakland Author
(2021)

cover image of Gut Bugs, Dust Mites, and Other Microorganisms You Can't Live Without

Gut Bugs, Dust Mites, and...

Nasty (but Useful!) Science (Series)

Mark Weakland Author
(2021)

cover image of Captain Kidd's Crew Experiments with Sinking and Floating

Captain Kidd's Crew...

In the Science Lab (Series)

Mark Weakland Author
Troy Cummings Illustrator
(2021)

cover image of DO-4U the Robot Experiences Forces and Motion

DO-4U the Robot Experiences...

In the Science Lab (Series)

Mark Weakland Author
Michael Moran Illustrator
(2021)

cover image of Pucks, Clubs, and Baseball Gloves

Pucks, Clubs, and Baseball...

Poet in You (Series)

Catherine Ipcizade Author
Blake Hoena Author
(2021)

cover image of The Solid Truth about Matter

The Solid Truth about Matter

LOL Physical Science (Series)

Mark Weakland Author
Bernice Lum Illustrator
(2021)

cover image of Zombies and Forces and Motion

Zombies and Forces and Motion

Monster Science (Series)

Mark Weakland Author
Gervasio Flocco Illustrator
(2021)

cover image of Zombies and Electricity

Zombies and Electricity

Monster Science (Series)

Mark Weakland Author
Diego Coglitore Illustrator
(2021)

cover image of Zombies and Forces and Motion

Zombies and Forces and Motion

Monster Science (Series)

Mark Weakland Author
Gervasio Flocco Illustrator
(2021)

cover image of Magnets Push, Magnets Pull

Magnets Push, Magnets Pull

Science Starts (Series)

Mark Weakland Author
(2021)

cover image of Seeds Go, Seeds Grow

Seeds Go, Seeds Grow

Science Starts (Series)

Mark Weakland Author
(2021)

cover image of How Does Wi-Fi Work?

How Does Wi-Fi Work?

High Tech Science at Home (Series)

Mark Weakland Author
(2020)

cover image of Magnets Push, Magnets Pull

Magnets Push, Magnets Pull

Science Starts (Series)

Mark Weakland Author
(2021)

cover image of Seeds Go, Seeds Grow

Seeds Go, Seeds Grow

Science Starts (Series)

Mark Weakland Author
(2021)