science project

science project
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  • 4.5 BYBP: The sun formed from a big cloud of gas and dust. The cloud was dark and cold, and its gravity caused it to fall together.
  • 4.5 BYPB: The earth is formed.
  • The oxygen catastrophe was when dioxide made its appearance in the Earth's atmosphere. It killed off many bacteria in the ocean, and it was created by cyanobacteria.
  • Iron atoms and these new Oxygen atoms (created by cyanobacteria) combined and created rust on the bottom of the ocean floor.
  • Plants are discovered to be photosynthetic, which are caused by chloroplasts. Scientists realize chloroplasts and cyanobacteria are very similar.
  • Scientists discover that chloroplasts are cyanobacteria that have adapted to living in this certain plant. This is called endosymbiosis; when one living thing becomes incorporated with another. Humans would be dead without this cyanobacteria.
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