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7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
7th Grade Chapter 6 Lesson 2
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7th Grade Chapter 6 Lesson 2

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For Studeny Use Only

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  • 1. 7th Grade Chapter 6 Lesson 2 <ul><ul><li>Pgs. 198 - 206 </li></ul></ul><ul><ul><li>For Student Use Only </li></ul></ul>
  • 2. Weather vs. Climate <ul><ul><li>There are 4 seasons </li></ul></ul><ul><ul><ul><li>Summer- Around June 21 is Summer Solstice (day is longest and night is shortest) </li></ul></ul></ul><ul><ul><ul><li>Fall- Around Sept. 22 is Autumnal Equinox (day and night and equal) </li></ul></ul></ul><ul><ul><ul><li>Winter- Around Dec. 22 is Winter Solstice (shortest day of year and longest night of the year). </li></ul></ul></ul><ul><ul><ul><li>Spring- Around March 21 is the Vernal Equinox (day and night are equal) </li></ul></ul></ul>
  • 3. Weather vs. Climate <ul><ul><li>The Seasons: </li></ul></ul><ul><ul><ul><li>Seasons are caused by tilt of axis </li></ul></ul></ul><ul><ul><ul><ul><li>Axis- an imaginary line running through the center of the earth </li></ul></ul></ul></ul><ul><ul><ul><li>Axis is tilted at slight angle to the earth’s plane of revolution about the sun- 23 ½ degree tilt </li></ul></ul></ul><ul><ul><ul><ul><li>Plane- flat surface like a table top </li></ul></ul></ul></ul><ul><ul><ul><ul><li>The seasons arise from the tilt of the earth’s axis </li></ul></ul></ul></ul><ul><ul><ul><li>Solar Year- 365 ¼ days </li></ul></ul></ul><ul><ul><ul><ul><li>Axis always points to Polaris </li></ul></ul></ul></ul>
  • 4. Weather vs. Climate <ul><li>Rotation vs. Revolution </li></ul><ul><ul><li>Rotation- one turn around the axis </li></ul></ul><ul><ul><li>Revolution- one turn around the sun </li></ul></ul><ul><li>The Seasons: </li></ul><ul><ul><li>The Hemispheres point towards the sun at different times </li></ul></ul><ul><ul><li>The Hemispheres seasons are opposite </li></ul></ul>
  • 5. Weather vs. Climate <ul><li>Season Heating Differences </li></ul><ul><ul><li>Changes in lengths of day and night causes warming and cooling </li></ul></ul><ul><ul><li>This difference in heating also is caused by temperatures </li></ul></ul><ul><li>Angle of the Sun </li></ul><ul><ul><li>Northern Hemisphere leans towards sun in their summer </li></ul></ul><ul><ul><li>Southern Hemisphere leans towards sun in their summer </li></ul></ul>
  • 6. Weather vs. Climate <ul><li>Spherical Earth </li></ul><ul><ul><li>Parallels of Latitude: </li></ul></ul><ul><ul><ul><li>Imaginary lines that run horizontally (think lines on a ladder) </li></ul></ul></ul><ul><ul><ul><ul><li>90 degrees North= North Pole </li></ul></ul></ul></ul><ul><ul><ul><ul><li>90 degrees South= South Pole </li></ul></ul></ul></ul><ul><ul><ul><li>Tropic of Cancer: This is located 23.5 North Latitude </li></ul></ul></ul><ul><ul><ul><ul><li>Sun is direct at this point at our summer </li></ul></ul></ul></ul><ul><ul><ul><li>Tropic of Capricorn: This is located 23.5 South Latitude </li></ul></ul></ul><ul><ul><ul><ul><li>Sun is direct at this point at our winter </li></ul></ul></ul></ul>
  • 7. Weather vs. Climate <ul><li>Latitudes </li></ul><ul><ul><li>Arctic and Antarctic Circle: </li></ul></ul><ul><ul><ul><li>Arctic Circle- 66.5 north </li></ul></ul></ul><ul><ul><ul><li>Antarctic Circle- 66.5 south </li></ul></ul></ul><ul><ul><li>Once sunlight enters atmosphere it bends </li></ul></ul><ul><ul><li>Band of Twilight </li></ul></ul><ul><ul><ul><li>Illuminated by scattered or refracted light </li></ul></ul></ul><ul><ul><li>Winter in tropics- regions lying near equator hardly have winter </li></ul></ul>
  • 8. Weather vs. Climate <ul><li>Latitudes affect how warm or cool areas get </li></ul><ul><ul><li>Sun never sets on June 21 in Arctic (the land of the midnight sun) </li></ul></ul><ul><ul><li>Ice and Snow reflect sun back </li></ul></ul>

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