Presents a short study of the various types of Tunda including the Arctic Tundra and Alpine Tundra, where they are located, plants and wildlife, technology of the Tundra, and efforts to protect it.
An introduction to mountain biomes, looking at where they are located in the world, the types and climates of mountains, and native plants and animals, and discussing why mountains are in danger, and the types of jobs available for people who want to work in the mountains.
Presents a short study of the various types of deserts in the world, where they are located, the plants and animals that inhabit them, their climates, and other interesting facts about deserts.
An introduction the civil rights movement of the early twentieth century in the United States that discusses segregation, Brown v. the Board of Education, Martin Luther King, Jr., the Little Rock Nine, sit-ins, Malcolm X, and more.
Introduces children to the life of influential political leader Condoleezza Rice, discussing her childhood, schooling, years as a teacher, influence on American politics, and other related topics.
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.
Text and photographs portray Puerto Rico's geography and climate, city and rural life, industry, and transportation, focusing especially on the island's status as a Commonwealth.
