Raintree fusion

Photographs, illustrations, and drawings describe the customs, culture, and beliefs of the ancient Aztec civilization.

Presents a short study of atoms and elements, and includes information on the first chemists, weighing atoms, the periodic table, and more.

Examines how certain habitats and climates affect animals and how they can survive extreme temperatures in the desert and arctic.

Introduces a variety of animals that are champions at diving, jumping, sprinting, lifting, climbing, swimming, sprinting, and spitting, and examines the reasons why they are so skilled in these areas.

Presents a children's book for early readers that describes how different species of animals reproduce.

Presents a short study of how the earth moves in space, and describes the days and seasons, the orbit of the earth around the sun, and more.

Presents an overview of the world's landforms including lakes, rivers, and waterfalls; mountains, volcanoes, and canyons; and islands and deserts.

Presents an overview of magnetism including coverage of such concepts as permanent and temporary magnets, attraction and repulsion, and magnets in everyday life.

Presents a short study of weathering and erosion and discusses how the earth is constantly changing due to landslides, wind and water erosion, and other natural factors.

Offers an overview of the government programs created by President Roosevelt to help lift the United States out of the Great Depression.