A place for my students to get some help in Earth Science
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| Earth Science A place for my students to get some help in Earth Science |
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Sunday, October 05, 2003 9/29/03 Aim: How can we determine the Earth’s size and shape? Black Book pg.17 Read Topic 1 Do questions and answers topic 1 page 20, topic 2 question 2 page 20 Essential Notes on Size and Shape 1. Proof of Earth’s shape A. Angle of sun eclipse setting B. Objects on the horizon C. Pictures- D. Position of stars- Polaris N. Hemisphere Southern Cross S. Hemisphere 2. ESRT 2001 page 15 3. Oblate spheroid- • Use the formula for circular circumference • But it is not exactly spherical (almost) • Objects weigh different amounts of equator and poles because of distance from center 9/30/03 Aim: How big is the Earth? Read Topic 4 page 20 Do Question and answers 4 page 20 Seasons- tilt of the earth (weight decreases, gravity decreases and distance from center increases) Things I learn yesterday Earth is a sphere True- horizon, sunset, eclipse, ships, gravity is almost equal, Pictures, Polaris and Southern Cross False- oblate spheroid (Polar-flat on top, Equatorial-bulging in middle) gravity differences Increased caused by relation of EARTH Equatorial- middle VS Circumference Polar- top Density- increased Basalt- oceanic lithosphere Decreased Granite- continental lithosphere How can we compare the atmosphere, hydrosphere, and lithosphere? Red Text page 15 and 16 Questions for practice 1-16 page 16 and 17 10/1/03 Aim: How can we compare atmosphere, hydrosphere and lithosphere? Atmosphere- Gas Hydrosphere- liquid, water Lithosphere- solid Reference read text 15-16 black text page 480 ESRT pg.14, pg.10, pg.11 JGSEarthscience.blogsput.com Atmosphere- top page 14 Do now read topic 3 and 4 Questions and answer 3 and 4 page 483 Things I already know Basalt-oceanic-lithosphere Granite-continental-lithosphere Convection- movement of gasses or fluids based on density Density, Mass, Volume Lab 4 Interface- different Where two things meet 10/2/03 Aim: How can we locate points or positions on Earth? Do now: Read topic 2 and 3 pg.111 Questions and answers 2 and 3 pg.114 Things we have learned Earth’s shape/size Lab 4- interface, convection, heating and density, Gravity Atmosphere pg.14 ESRT 5km how much H2O vapor 10 Temp, Zone, H2O vapor • The Nature of Earth’s Shape and Surface • Earth’s Shape • Roundness • Smoothness • Evidence of Earth’s Shape • Ships and Eclipses • Observation of the Altitude of Polaris (the North Star) posted by James | 5:34 PM |
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