Juvenile Nonfiction

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cover image of Pulleys

Pulleys

Early Bird Physics (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2001)

cover image of Inclined Planes and Wedges

Inclined Planes and Wedges

Early Bird Physics (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2001)

cover image of Studying Soil

Studying Soil

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Marveling at Minerals

Marveling at Minerals

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Investigating Sound

Investigating Sound

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Investigating Light

Investigating Light

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Figuring Out Fossils

Figuring Out Fossils

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Researching Rocks

Researching Rocks

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Investigating Sound

Investigating Sound

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2014)

cover image of Investigating Heat

Investigating Heat

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2014)

cover image of Levers

Levers

Early Bird Physics (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2001)

cover image of Deadly Aim

Deadly Aim

Sally M. Walker Author
Eric Hemenway Author of introduction, etc.
(2019)

cover image of Researching Rocks

Researching Rocks

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Put Wheels and Axles to the Test

Put Wheels and Axles to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Pulleys to the Test

Put Pulleys to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Levers to the Test

Put Levers to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Inclined Planes to the Test

Put Inclined Planes to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Investigating Heat

Investigating Heat

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Put Screws to the Test

Put Screws to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2014)

cover image of Put Pulleys to the Test

Put Pulleys to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2014)

cover image of Put Levers to the Test

Put Levers to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2014)

cover image of Put Inclined Planes to the Test

Put Inclined Planes to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2014)

cover image of Investigating Magnetism

Investigating Magnetism

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2014)

cover image of Investigating Light

Investigating Light

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2014)

cover image of Shipwreck Search

Shipwreck Search

On My Own Science (Series)

Sally M. Walker Author
Elaine Verstraete Illustrator
(2008)

cover image of Work

Work

Early Bird Physics (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2001)

cover image of Wheels and Axles

Wheels and Axles

Early Bird Physics (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2001)

cover image of Put Wedges to the Test

Put Wedges to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Screws to the Test

Put Screws to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Investigating Matter

Investigating Matter

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Investigating Electricity

Investigating Electricity

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Studying Soil

Studying Soil

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Investigating Matter

Investigating Matter

How Does Energy Work? (Series)

Sally M. Walker Author
Intuitive Narrator
(2014)

cover image of Figuring Out Fossils

Figuring Out Fossils

Do You Dig Earth Science? (Series)

Sally M. Walker Author
Intuitive Narrator
(2017)

cover image of Champion

Champion

Sally M. Walker Author
(2018)

cover image of Put Pulleys to the Test

Put Pulleys to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Screws to the Test

Put Screws to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Deadly Aim

Deadly Aim

Sally M. Walker Author
Eric Hemenway Author of introduction, etc.
(2019)

cover image of Put Inclined Planes to the Test

Put Inclined Planes to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Levers to the Test

Put Levers to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Wedges to the Test

Put Wedges to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Put Wheels and Axles to the Test

Put Wheels and Axles to the Test

How Do Simple Machines Work? (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2017)

cover image of Researching Rocks

Researching Rocks

Do You Dig Earth Science? (Series)

Sally M. Walker Author
(2017)

cover image of Screws

Screws

Early Bird Physics (Series)

Roseann Feldmann Author
Sally M. Walker Author
(2001)

cover image of Deadly Aim

Deadly Aim

Sally M. Walker Author
Darrell Dennis Narrator
(2021)

cover image of El magnetismo (Magnetism)

El magnetismo (Magnetism)

Libros de energía para madrugadores (Series)

Sally M. Walker Author
Andy King Other
(2022)

cover image of Underground Fire

Underground Fire

Sally M. Walker Author
(2022)

cover image of Underground Fire

Underground Fire

Sally M. Walker Author
Jennifer Jill Araya Narrator
(2022)