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Bailey Linton | Friday, March 5, 2010
It’s about time, is the title for investigation. Did you know that geological time begins with 0? This is one thing we learned while studying in this investigation. We made a time line, 45 cm long. Each group had a time line, on paper. We measured and marked the time periods and eras. We measured the length of the time period or era by . . .
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In Science this quarter we were focusing on the Grand Canyon. In Unit 6 we worked with times lines and geological time. We learned that geological time starts with zero or today and ends on a certain date. For the Grand Canyon activity we . . .
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In Exam 5 we learned about how limestone was made. Ca+2O+2H+C+2O= CaCO3 Ca(OH)2 CO2 Calcium Calcium Carbon Carbonate Hydroxide Dioxide AKA Calcite The calcium atom bonds with the carbon dioxide plus one of the oxygen atoms from the hydroxide . . .
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In exam 4 we learned the order of rocks from youngest to oldest was Kaibab limestone Toroweap limestone Coconino sandstone hermit shale supai sandstone redwall limestone muav limestone bright angle shale Tapeat sandstone. Then we learned how . . .
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