Summary: This week I learned about radioactive dating and about the prehistoric eras (Mesozoic era). Radioactive dating is a way for scientists/geologists to tell how old layers of rocks are and how to tell how old fossils are. Radioactive dating helps scientists/geologists know more about the Earth's history. The way that it works is that scientists read the radioactive signatures of rock layers to tell how old they are. As for the prehistoric eras, there are three different eras such as the Paleozoic, Mesozoic, Cenozoic, and the Precambrian eras. I studied the Mesozoic era which has three periods which are the Triassic, the Jurassic, and the Cretaceous. The Mesozoic era is the era when the rocky mountains formed and when Pangea happened. Pangea is when a part of land split from another part of land.
SP6: Constructing explanations and designing solutions
The goal of science is the construction of theories that provide explanations about the natural world. explanatory power.
Did you explain something through your work?
(This may be when you researched something)
Yes in class we got into groups and we each researched an era. We wrote down the information on a paper with questions asking things like 'name an important event from your era' and what era we were doing. We explained something through our work because we answered the questions and our answers explain what happened in the era.
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