Tuesday, January 13, 2015

Unraveling Earth's History Mystery

Today was interesting because I learned about different types of rocks and minerals. Most importantly, I learned how they formed like that and what they were composed of. We also saw dinosaur tracks imprinted into mud stone. What struck me was how dinosaur footprints embedded into rock for millions of years were discovered by humans thankfully without being disturbed. I guess they were waiting to be found! :)

We learned about sedimentary, volcanic, and metamorphic rocks and how each type is formed in different areas of the Earth. Furthermore, it was cool to see a satellite picture of sand being deposited into the Gulf by the Mississippi River; it was remarkable. Random thought: It's crazy how even though graphite and diamonds are both made from carbon, their atomic structures can create different substances!

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