We took brief notes on the the theories or famous deeds of astronomers Ptolemy, Copernicus, Tycho Brahe, Kepler, Galileo and Isaac Newton. We then broke into our groups and built our ancient observatories. Students build models of Stonehenge, Maya pyramids, the Great Pyramid of Giza, the Sun Dagger at Chaco canyon and others.
8th grade
We discussed four questions used to decide if something is a mineral then we broke into groups and used the four questions to determine if shells, bones, fossils, concrete and other samples were minerals.
We then got back and learned the phrase OSiAlFe which stands for Oxygen, Silicon, Aluminum and Iron, the most common elements on the earth.. We also learned to draw a box and estimate the amount of each element on the earth.
Finally we took some notes on Silicate and Non-Silicate minerals.
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