Aim: We will discuss the Protoplanet hypothesis and the origin of the atmosphere and then focus on percent- deviation.
Standard 4- Science Concepts
Proto- planet hypothesis adds onto the Nebular hypothesis. It states that smaller clouds of dust rotated within the Nebula and
A gravitational force pulled it tighter together forming the beginnings of planets called Protoplanets. Smaller collisions formed smaller objects which became moons and asteroids. As a result of this group of collisions, hydrogen pushed together and a new sun was born.
As the earth formed, there were 3 sources of extreme heat… compression (friction), radio-active minerals and meteorites that bombarded the new planet. When the earth became so hot that It could not handle anymore, molten iron sank to the middle of The planet and vapor escaped, this was the release of water and Gas that developed into the ocean.