Gosman, Gillian

An exploration of pulleys that defines what they are; discusses their parts, how they work, their history, and how they are used; and includes a related experiment.

An exploration of levers that defines what they are; discusses their parts, how they work, their history, and how they are used; and includes a related experiment.

An exploration of inclined planes that defines what they are; discusses their parts, how they work, their history, and how they are used; and includes a related experiment.

A biography of Chris Colfer, television actor and singer on the television show Glee, discussing his childhood, other roles, and his Golden Globe.

Introduces simple machines and examines which ones may be found at a school and on the school grounds.

The plates that make up the Earth's surface are always on the move. The twenty questions posed and answered help explain the fundamentals of plate tectonics. Readers will learn about the layers that make up the Earth, how mountains and volcanoes form, and why earthquakes happen.

A guide that teaches young readers about sharing their writing online, discussing such topics as nonfiction writing, creative writing, social networks and forums, and more.