A short study of caves, discussing where they are found around the world, cave weather, types of caves, cave technology, plants, and animals, and challenges to the ecosystem.
An introduction to rain forest biomes, looking at where they are located in the world, the types and climates of rain forests, and native plants and animals, and discussing why rain forests are in danger, and the types of jobs available for people who want to work in rain forests.
Explores the rugged and lonely wilderness of frozen lands and icy seas which sweep around the top of the earth and which are rich with wildlife and scenery.