We are continuing with our Chemistry study by focusing on the difference between elements and compounds and the fact that our world is mainly composed of 18 elements---a very limited number of elements make up most of our biosphere, atmosphere, oceans, and solid earth. The eight most common are carbon, hydrogen, oxygen, nitrogen, silicon, aluminum, iron and calcium.
UPCOMING: Vocabulary Quiz on Friday Nov 16 --- the remainder of the lists for Chemistry---list 1 and 2 for a total of 25 words, as students were reminded of this last Monday.
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