"In the 1990s, scientists lived inside Biosphere 2 (Biosphere 1 is the Earth itself) for two years, trying to figure out if colonizing Mars would ever be possible. Now scientists don't live there but instead conduct all sorts of studies and experiments aimed to help us better understand our environment and especially understand what sort of things are happening to it due to climate change and other man-made problems. It's a unique take on the Scientists...

"Red Kangaroo has an upset tummy from eating too much junk food! She wants to know if it's possible to travel back in time to eat vegetables instead. Can she do it? Join Red Kangaroo and Dr. Chris as they explore time and space!"--back cover.

Profiles the systems that work together to keep urban areas running safely, discussing how cities have evolved since the first riverside settlements while outlining projects that explain facts about transportation, water systems, and architecture.

Hocus Pocus: After 300 years, three sister witches are resurrected in Salem, Massachusetts, on Halloween night, and it is up to two teenagers a young girl, and an immortal cat to put an end to the witches' reign of terror once and for all. The haunted mansion: A family goes to visit a mansion, with thoughts of buying it, and ends up stranded there by a freak storm. They soon find that not only does the current owner live there but so do 999 ghosts. Halloweentown:...