AstronomyDon Powers, John B. Beaver, Schyrlet Cameron, Carolyn Craig · First published 2010Open the Tome
Simple MachinesJohn B. Beaver, Barbara R. Sandall, Schyrlet Cameron, Carolyn Craig · First published 2002 · Latest edition 2010Open the Tome
Solar System, Grades 5 - 8+Powers, Ph.D., Don, Beaver, Ph.D., John B · First published 2009Open the Tome
Electricity and Magnetism, Grades 5 - 8+Beaver, Ph.D., John B, Powers, Ph.D., Don · First published 2002Open the Tome
