https://www.khanacademy.org/science/ap-biology/natural-selection/origins-of-life-on-earth/v/earth-formation 2020-08-28T01:50:16Z Earth formation Earth ​was formed approximately 4.6 billion years ago, likely as the result of a supernova (star explosion). The debris from this explosion began to collapse in on itself due to gravity, forming the sun. Gravity continued to draw the remaining particles together, clumping them into larger bodies, ultimately forming Earth and the other planets in our solar system. Sal Khan video https://cdn.kastatic.org/googleusercontent/HxjEkHcYLB7pn5Ci9A0idZOH8n3umyABicUvCG8qCw57PLSmyXGFXhxjA9bbIzLU__m9mIqu2MDaHbhH8BxQiht44w Earth formation Earth ​was formed approximately 4.6 billion years ago, likely as the result of a supernova (star explosion). The debris from this explosion began to collapse in on itself due to gravity, forming the sun. Gravity continued to draw the remaining particles together, clumping them into larger bodies, ultimately forming Earth and the other planets in our solar system. https://cdn.kastatic.org/ka-youtube-converted/VbNXh0GaLYo.mp4/VbNXh0GaLYo.mp4 608 A brief history of the Earth https://www.khanacademy.org/science/strengthened-shs-earth-and-space-science-1/x006d5d274c051fd7:origin-and-structure-of-the-earth/x006d5d274c051fd7:a-brief-history-of-the-earth/v/bhp-how-did-earth-solar-system-form 2023-07-02T10:05:56.724382666Z WATCH: How Did Earth and the Solar System Form? Explore the fascinating process of how chemistry and celestial events combined to form our solar system. Learn about the role of elements, molecules, and the intense heat of the young sun in creating the diverse and complex structures of planets, including our own Earth. Big History Project video https://cdn.kastatic.org/googleusercontent/bxrdDTiJ8vKI0rvfhhFHBE6yjbR6zSRS0yftEQJ4mzYE2G0J9ayiDeCzTEPZOogoXe8a1WGJpThfO6lms34wS7bq WATCH: How Did Earth and the Solar System Form? Explore the fascinating process of how chemistry and celestial events combined to form our solar system. Learn about the role of elements, molecules, and the intense heat of the young sun in creating the diverse and complex structures of planets, including our own Earth. https://cdn.kastatic.org/ka-youtube-converted/QgVwzm3u3mc.mp4/QgVwzm3u3mc.mp4 726 A brief history of the Earth https://www.khanacademy.org/humanities/oer-project-big-history/xc3079f0f2dd307e4:unit-2/xc3079f0f2dd307e4:earth-2-6/a/video-what-was-the-early-earth-like 2026-01-24T14:10:36.770864637Z What Was the Young Earth Like? The early Earth was not a pleasant place to be. How did it change to become a place that supports life? article https://www.khanacademy.org/science/strengthened-shs-earth-and-space-science-1/x006d5d274c051fd7:origin-and-structure-of-the-earth/x006d5d274c051fd7:a-brief-history-of-the-earth/e/quiz--earth---the-formation-of-our-solar-system 2021-04-29T07:51:56Z Quiz: Earth & the Formation of Our Solar System Quiz 4.0 Jay Heins exercise https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/plate-techtonics/v/plate-tectonics-geological-features-of-convergent-plate-boundaries 2024-06-21T23:15:14.703721694Z Plate tectonics: Geological features of convergent plate boundaries Plate tectonics involves the movement and interaction of Earth's crustal plates, leading to geological changes. Divergent boundaries create new crust, while convergent boundaries, where plates collide, can form mountains, island arcs, earthquakes, and volcanoes. The subduction of one plate under another can result in deep trenches and underwater volcanoes. Sal Khan video https://cdn.kastatic.org/googleusercontent/l-c8jfg1yB2UuAPYZU0CaNvMX4hnUrMsRV-0_IXRq4RCnvvrJhYUsphGsd5xU1NXile13QTp4_nPDcwH27jvQCcXSA Plate tectonics: Geological features of convergent plate boundaries Plate tectonics involves the movement and interaction of Earth's crustal plates, leading to geological changes. Divergent boundaries create new crust, while convergent boundaries, where plates collide, can form mountains, island arcs, earthquakes, and volcanoes. The subduction of one plate under another can result in deep trenches and underwater volcanoes. https://cdn.kastatic.org/ka-youtube-converted/Y0eWnOZpSpQ.mp4/Y0eWnOZpSpQ.mp4 364 A brief history of the Earth https://www.khanacademy.org/science/ap-college-environmental-science/x0b0e430a38ebd23f:earth-systems-and-resources/x0b0e430a38ebd23f:plate-tectonics/e/plate-tectonics 2021-07-31T01:12:35.280321966Z Plate tectonics Apply your understanding of plate tectonics in this set of free practice questions aligned to AP standards. exercise