Jeff de la Rosa

Sentences and Their Parts (Building Blocks of English)

Jeff de la Rosa

$14.62

Advanced Consonants and Vowels (Building Blocks of English)

Jeff de la Rosa

$22.62

Consonants and Vowels (Building Blocks of English)

Jeff de la Rosa

$22.62

Would You Rather Search for Life on Mars or on Mercury?…and Other Vast Questions About Space

Jeff de la Rosa

Out of Stock

Unicorns

Jeff de la Rosa

Out of Stock

Bigfoot

Jeff de la Rosa

Out of Stock

The Chupacabra

Jeff de la Rosa

Out of Stock

Building Blocks of Chemistry (Set)

Jeff de la Rosa

Out of Stock

The Cell (Building Blocks of Biology)

Jeff de la Rosa

$29.62

Reproduction and Development (Building Blocks of Biology)

Jeff de la Rosa

$29.62

Out of This World

Jeff de la Rosa

$11.09

Squishy, Fishy Robot Explorers

Jeff de la Rosa

Out of Stock

Meet NASA Inventor Masahiro Ono and His Team's Asteroid-Harpooning Hitcher

Jeff de la Rosa

Out of Stock

Laser-Sailing Starships: Meet NASA Inventor Philip Lubin and His Team's

Jeff de la Rosa

Out of Stock

Alien Cave Explorers: Meet NASA Inventor William "Red" Whittaker and His Team's

Jeff de la Rosa

Out of Stock

Solar-Wind-Riding Electric Sail: Meet NASA Inventor Bruce Wiegmann and His Team's

Jeff de la Rosa

Out of Stock

Meet NASA Inventor Robert Hoyt and His Team's Web-Spinning Space Spiders

Jeff de la Rosa

$5.79

Land-Sailing Venus Rover: Meet NASA Inventor Geoffrey Landis and His Team's

Jeff de la Rosa

$12.09 - $13.89

Meet NASA Inventor Kendra Short and Her Printable Probes and Cosmic Confetti

Jeff de la Rosa

$26.49

Robots Sensing and Doing

Jeff de la Rosa

$29.62

Robots and People

Jeff de la Rosa

$29.62

Weird Robots

Jeff de la Rosa

$29.62

World Book - Out of This World - Land-Sailing Venus Rover with NASA Inventor Geoffrey Landis

Jeff de la Rosa

$20.47

World Book - Out of This World - Printable Probes and Cosmic Confetti with NASA Inventor Kendra Short

Jeff de la Rosa

$20.47

True or False? Civil Rights

Jeff de la Rosa

$25.30 - $30.69

Chemistry Experiments

Jeff de la Rosa

Out of Stock