List of - Biggest Cities in the World, Highest Mountains, Deepest Spot in the Ocean, Longest RiversTable of Contents Overview of the Earth Sometimes also called "the World" or "the Globe", the Earth is the third planet from the Sun. The Earth rotates on its axis in orbit around the Sun, which is the main source of energy for all life on Earth. Estimated Weight (mass) 5,940,000,000,000,000,000,000 metric tons (13,170,000,000,000,000,000,000,000 lbs)Estimated Age 4.6 billion yearsCurrent Population 7,000,000,001Surface Area 196,900,000 square milesLand Area 148,647,000 sq km 29.1%Ocean Area 335,258,000 sq km Total Water Area 361,419,000 sq km 70.9%Type of Water 97% salt, 3% fresh Circumference at the equator 40,030 km (24,874 m)Circumference at the poles 40,008 km (24,860 m)Diameter at the equator 12,756 km (7,926 m)Diameter at the poles 12,714 km (7,898 m) Mean radius 6,371 km (3,959 m) Orbit Speeds The earth orbits the Sun at 108,000 kmph (70,000 mph)Sun Orbit The earth orbits the Sun every 365 days, 5 hours, 48 minutes and 46 seconds The Oceans Major Bodies of Water Major Rivers
Collections with Maps | Library of CongressCollection Mapping the National Parks This collection documents the history, cultural aspects and geological formations of areas that eventually became National Parks. The collection consists of approximately 200 maps dating from the 17th century to the present, reflecting early mapping of the areas that would become four National Parks, as well as the parks themselves. Production of this collection is being supported by a generous gift from The Rockefeller... Contributor: Library of Congress. Geography and Map Division - Library of Congress.
Nature, Vocabulary, ESL, Memory Game, river, lake, ocean, waterfall, jungle, mountainLearn Nature Vocabulary with this ESL Memory Game (river, lake, ocean, waterfall, jungle, mountain etc.) . This game is also excellent for Vocabulary Teaching and Practice. ESL Learners and Teachers can use it to review English vocabulary or simply practice these words. This memory games has audio, images and text which makes it possible to practice spelling, reading, listening and word recognition. Please play this game at least twice to practice all words - The first time you play, only 6 words will be used, second time, other words will show up. Games are great for motivating students to learn. More Games