1. Sedimentary Rock 2. Metamorphic rock
Summary
Geology is the study of the structure of planet earth and the forces that make and shape the earth. In geology, there is a law called the principle of uniformitarianism which is the idea that geologic processes that operate today also operated in the past. This principle helps geologists understand the world and explain the natural phenomenon by allowing them to look at how things are made now and know how things were made then. The rock cycle is the cycle that changes rocks into different kinds. There are three types of rocks: Igneous, sedimentary and metamorphic.
S&EP 2: Developing and Using Models
This week I developed and used models when I created a model representing the rock cycle using starbursts. First sedimentary rock was created by cutting up two different colored starbursts and applying a light amount of pressure on them. The sedimentary rock was then transformed into metamorphic rock when more heat and pressure was applied. The metamorphic rock was then thrown into a microwave (volcano) and heated up and cooled into igneous rock. This model represents the rock cycle because it shows the process needed in order for each type of rock to change into another.
XCC: Patterns
As I mentioned earlier, the principle of uniformitarianism is the idea that what process is happening now also happen in other places around the world and will operate the same way in the future and past. This principle proves that geologic processes in the world repeat a pattern. By looking at the geologic pattern scientists can date rocks, understand the past, and predict the future.
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