Jenny E Tesar

Presents facts and statistics on ten noted national parks: Great Smoky Mountains, Grand Canyon, Yosemite, Yellowstone, Rocky Mountain, Olympic, Grand Teton, Acadia, Zion, and Mammoth Cave.

Provides an introduction to space travel, describing what astronauts do, how they live and work in space, space shuttles and space stations, moon landings, and more.

Examines the very promising but controversial use of human stem cells in treating medical conditions ranging from burned skin to damaged spinal cords to various diseases.

An introduction to the physical characteristics, climate, and location of the planets of the solar system.

Describes the physical characteristics, lifestyle, habitat, reproductive process, and methods of survival of this kangaroo which is native to Australia.

Examines all kinds of waste, including commercial, industrial, toxic, and radioactive waste, and discusses the problems and possible solutions connected with the existence and management of such pollutants.

Describes ten naturally occuring curiosities in the United States, including Acoustic Sand Mountain, Austin's bat colony, bristlecone pine trees, the flaming fountain in Pierre, South Dakota, and the Thurston lava tubes.

Introduces the Earth's moon, discussing its surface, far side, tides, phases, and eclipses.