earth (planet)

"How old is the earth? Where is the ice three miles thick? Why are volcanoes so dangerous? Where are the wettest and driest spots on the planet? Find the answers to these questions--and many more--in Earth by the numbers."--.

Earth is truly amazing! It has giant glaciers, gorgeous canyons, and it's the only planet we know of with intelligent life. Ian is exploring Earth with his tour guide, Dr. Sally. Join them as they study ocean animals, the African savanna, and the chilly South Pole. Find out more about the planet we call home.

An introduction to the planet Earth's surface, surroundings, interior, and more. Includes audio, videos, activities, weblinks, slideshows, maps, quizzes, and supplementary resources.

An introduction to the planet Earth's surface, surroundings, interior, and more. Includes audio, videos, activities, weblinks, slideshows, maps, quizzes, and supplementary resources.

Presents a study of Earth; and describes its moon, early observations and astronomers, where it is located in the solar system, comparisons to other planets, and various space missions. Includes audio, videos, activities, weblinks, slideshows, transparencies, maps, quizzes, and supplementary resources.

Explores the qualities that make the Earth a unique planet, focusing on its ability to support life and explaining the factors that allow life to exist, such as the planet's composition and its position within the solar system; includes an activity that teaches students about the Earth's water cycle, and a visit to Biosphere 2 in Arizona.

Taking care of the earth includes recycling, picking up trash, planting trees, and riding our bikes instead of using a car.

Explains why day and night occurs, including information on the rotation of the Earth, the North and South pole, and the planets and stars.

Readers must lift the flaps to compare the same moment of time in countries around the world. Includes a map and information about time zones.