Science Brain Builders: Electrical Engineer... by Sobey, Ed Paperback / softback

Learning about Rocks (Science Builders) - Paperback By Mari Schuh - GOOD

The Way Toys Work: The Science Behind the - Paperback, by Sobey Ed; Sobey - Good

Inventing Toys: Kids Having Fun Learning - Paperback, by Sobey Ed - Acceptable

Science Brain Builders: Computer Progra... by Edelman, Brad Paperback / softback

Ed Sobey Science Brain Builders Robotics Engineering Learn it, Try i (Paperback)

The Motorboat Book: Build & Launch 20 Jet - Paperback, by Sobey Ed - Acceptable