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Earth Day by the Numbers

April 22, 2016, marks the 46th anniversary of Earth Day—a day intended to inspire awareness and…

DK Science: Earth

+ PLANET EARTH ATMOSPHERE OCEANS LAND ICE AND SNOW EARTH SCIENCE STUDY TECHNIQUES BIOSPHERE AXIS FIND OUT MORE + EARTH’S STRUCTURE EARTH’S LIFE STORY…

Earth Day by the Numbers

April 22, 2017, marks the 47th anniversary of Earth Day—a day intended to inspire awareness and appreciation for the Earth's natural environment. Organizers started Earth Day in response to a…

Scientists: Earth Sciences

Notable Scientists: Earth Sciences Geologists, geographers, naturalists, oceanographers, and paleontologists Jump to a category:…

Earth Science Projects

Science projects for all grades.   More Science Projects Biology Science Projects Botany Science Projects Chemistry Science Projects Physical Science…

Middle-earth Timeline

Middle-earth Timeline From the creation of Middle-earth to the War of the Ring by Laura Hayes Tolkien created a long and rich history for Middle-earth, and meant it to be an…

Middle-earth Timeline

Middle-earth Timeline From the creation of Middle-earth to the War of the Ring by Laura Hayes The awakening of Man, the Elves' struggle against Morgoth, and the love of Beren and…

Middle-earth Timeline

Middle-earth Timeline From the creation of Middle-earth to the War of the Ring by Laura Hayes The Second Age of Middle-earth saw the glory of Númenor, the rise of Sauron, and the…

Middle-earth Timeline

Middle-earth Timeline From the creation of Middle-earth to the War of the Ring by Laura Hayes The appearance of Hobbits, a ring is found, the return of Sauron. The Ages…

Middle-earth Timeline

Middle-earth Timeline From the Creation of Middle-earth to the War of the Ring by Laura Hayes The events in this period are covered by The Hobbit and The Lord of the Rings. The…