Back to Nature: Geology Rocks!

Question:
For Geology Rocks, will they be expected to identify the rock samples, or just classify them as igneous, sedimentary, or metamorphic?
Answer:
Students will need to know how to classify rocks as igneous (intrusive/extrusive), sedimentary (clastic/biochemical/chemical/organic), metamorphic (foliated/ non-foliated). They do not need to memorize rock names, but they should be able to justify how they decided what type of rock they have.
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Please note -these subclassifications are not mentioned in the first draft of the Back to Nature: Geology Rocks event description. Olympians should know how to distinguish them.

igneous (intrusive/extrusive)

sedimentary (clastic/biochemical/chemical/organic)

metamorphic (foliated/ non-foliated)