praire - Megan Thie A36592543 November 29, 2007 SME 301,...

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Megan Thie A36592543 November 29, 2007 SME 301, Section 007 These Happy Golden Years By Laura Ingalls Wilder 1. Property of matter or a change of state: pg. 46 “She did not sweep out the snow that Mr. Brewster tracked in; it melted and made puddles with the ashes around the stove.” The heat from the fire is causing the molecules in the snow to move faster, bounce off each other more, and move apart. This causes a change in the density and thus, the state of the matter from snow (frozen water/ice) to liquid water. 2. Astronomy: pg. 66 “The moon went down, and she stared at the dark until the gray winter daylight came.” The earth rotates around the sun once every 24 hours, and the moon rotates around the earth once about every 29 days. The amount of the moon we see is determined by its position in correlation with the sun, which illuminates the portion that we see here on earth. When the sun is risen, meaning it’s above our hemisphere (Western hemisphere) it is too bright so we don’t see the moon. So, it appears that the moon rises and sets everyday. When really, the position of the earth is changing because it rotates on it’s axis once every 24 hours. 3. Precipitation: pg. 79 “A bitter wind rolled the snow across the prairie.” A snow storm is usually the result of the warm air flowing up and over the cold air
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This note was uploaded on 04/27/2008 for the course SME 301 taught by Professor Holcomb during the Spring '08 term at Michigan State University.

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praire - Megan Thie A36592543 November 29, 2007 SME 301,...

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