Weekly Blog 9/10/17: PreCabrian Era

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Summary

The Precambrian Era ranged from 544 million years ago to 4.6 billion years ago. It was a time of continent building for the earth. In addition to this, the first early stages of life also took place. During the Archean Time, the earth's crust was creating by the cooling of lava. Some lava escaped through cracks and those volcanoes help create more rock surface. The volcanoes created clouds which created rain which made the ocean. In the ocean, the first life was created, single celled bacteria. Thanks to the oxygen the organisms released into the air, life forms developed becoming more complex. In addition to this, the first plate tectonics were creating causing the first super continent called Rodinia. That took place 1.1 billion years ago. The ocean caused Rodinia to break up making the second super continent Pannotia.

SP6: Constructing explanations and designing solutions

I constructed explanations and designed solutions when I researched information and completed a data sheet on the Precambrian era. When I researched information on how the earth first formed as well as what it was like during that time, I explained and answered the questions on the data sheet and exercised the sixth science and engineering practice.

XCC: Stability and Change

The planet we call home is constantly changing from the species that inhabit it to the geologic structure of the earth itself. The Precambrian Era was a big time of change. When the earths crust was made, plate tectonics created the first super continent Rodinia. 350 million years later Rodinia broke up. North America moved towards the South pole while the rest of the continents moved up north. 150 million years later they collided again creating Pannotia. Now, the earth looks completely different. This shows that the earth is constantly changing and moving. However the process of change (how the plate tectonics move to create new land forms is still the same as it was millions of years ago.

Multiplier

This week I was a learning because I mainly focused on my own research. I read articles and passages to gather information and record it in my data sheet to use in the final project.