GEOL 1001 : Exam 1
Document Summary
Learning objectives: what is the big bang theory, elements come from stars, basics of planets in solar system. Mass/volume: energy the ability to do work, energy is provided by heat, light, magnetism, and gravity, ex) vibration, movement form one place to another, break. At this time hydrogen fused to create helium: 5 min all atomic nuclei formed, accumulation patchy clouds called nebulae 74% hydrogen and. 92 naturally occurring elements: stars are nuclear-fusion reactors fuses lighter reactants (eg. h, he) get heavier as a result. Iron is the heaviest element that will be yielded with this method. to get heavier elements, you have a supernova: supernova occurs when star violently explodes and makes heavier elements. All the star"s matter goes back into space. Solar system: includes anything that did not become a star, starts with a process of small rocks that bombard one another and eventually start to gain size. They become planetesimals: planetesimals diam > 1 km.
