Earth Science A place for my students to get some help in Earth Science

Friday, May 16, 2003   topics for review include measuring the Earth. How big? How dense? Atmosphere, lithosphere, hydrosphere? Latitude and longitude? Corilois effect and focault pendulum? Be confident and prepared. Read test instructions and questions carefully. Budget your test time in a balanced manner. Be "kind" to the exam grader/evaluator. Use your reasoning skills. Don't be afraid to guess posted by James | 10:34 AM   Just considering some of the notes that I will hand to you on Friday. Make sure you look at them efore next week. Only 8 minerals to know color is helpful. Black either magnetite or hornblende a paper clip will decide. White calcite and gypsum, but cleavage will decide. Yellow sulfur or olivine, more green, but hardness will determine. Rocks, made up of many ninerals. They can be sedimentary, igneous or metamorphic. Sed because layered, fossil, or pebbles. Igneous because of crystals, glassy, or holes. Neta morphic because of mica in layers or banding. Staion 3 is easy if you take your time, 6 mins. Remember how to put the tape, and stay in the same seat throuout the exam. posted by James | 10:30 AM Monday, May 12, 2003   Just made the quiz on plate tectonics, and I am now sitting in the lab looking at your practice practical. Station 1 is mineral ID. Remember that a god way to tell the difference between calcite and gypsum is the cleavage patterns. Gypsum should cleave more regularly and not be rough. Magnetite is too easy, paper clip. Rock ID remember the clastics vs non clastics. Fine grain vs coarse, obsidian, metamorphic rocks have mica; they can show foliation and banding. HCl for calcite, limestone, marble. The hardest one should be the timing and graphing of the beads. I just soaked them to see if any floated. I took the ones that did out. If you get one that floats or goes down really slow, don't use it! posted by James | 10:48 AM		archives links link link link