Today we worked on understanding the rock cycle. We discussed classifying rocks into igneous, metamorphic and sedimentary based upon how they were formed.
These formation processes were;
- Melting and Cooling-for igneous rocks
- Being subjected to heat and pressure-for metamorphic rocks
- Rocks turning into sediment via erosion and weathering, then being cemented together--for sedimentary rocks.
We drew the rock cycle from memory--several times.
At the end of class we took time to observe rock samples from each of the three categories.
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