https://padlet.com/20571311/nqm410n8myrfh96r en-us 2021-03-23 18:12:51 UTC 2025-10-24 01:11:52 UTC hello@padlet.com 20571311 https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344505635 The accumulation of particles into a massive object by gravitation-ally attracting more matter, usually gaseous matter. into an accretion disk Galaxies, stars, and planets are formed by accretion processes. ]]> 2021-03-23 18:13:55 UTC https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344505635 20571311 https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344508190 The moon formed during a collision between the Earth and another small planet, around the size of Mars. Debris from the impact collected in an orbit around the Earth, forming the moon. ]]> 2021-03-23 18:14:24 UTC https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344508190 20571311 https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344512950 Young Earth struggled through an attack of intense asteroid bombardment roughly 4 billion years ago. ]]> 2021-03-23 18:15:17 UTC https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344512950 20571311 https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344516562 As the planet cooled dense elements became concentrated in the core of the planet. Lighter elements formed the mantle. A thin and rigid crust formed at the surface.]]> 2021-03-23 18:15:58 UTC https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344516562 20571311 https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344581900 Formed Earth into a molten planet. Clumps of asteroids, meteors, and comets helped form the planet into a sphere. Volcanic eruptions too which contained magma. The magma then hardened which created Earth's outer core. ]]> 2021-03-23 18:28:40 UTC https://padlet.com/20571311/nqm410n8myrfh96r/wish/1344581900