Hello, Earthman!

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elementary earth science

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Hello, Earthman!

  1. 1. Hello, Earthman!
  2. 2. What do you know about earth
  3. 3. Earth facts <ul><li>Galaxy: Milky Way </li></ul><ul><li>Star System: Sun </li></ul><ul><li>Planet Type: Terrestrial </li></ul><ul><li>Size: Medium </li></ul><ul><li>Satellite: 1 (Moon) </li></ul><ul><li>Nickname: The Blue Planet </li></ul><ul><li>Notes: </li></ul><ul><li>The only planet in the solar system that could support life. </li></ul>
  4. 4. Earth Movement
  5. 5. Rotation <ul><li>The spinning of the Earth on its own axis </li></ul><ul><li>AXIS </li></ul><ul><li>- an imaginary line that runs through the North and South poles </li></ul>
  6. 6. Rotation <ul><li>AXIS </li></ul><ul><li>Observe the direction of the spin. </li></ul>
  7. 7. Rotation <ul><li>WEST </li></ul>NORTH EAST SOUTH
  8. 8. Rotation <ul><li>Earth is tilted on its axis at 23 ½ degrees </li></ul>AXIS
  9. 9. :Check <ul><li>Which part of the Earth gets the most sunlight? </li></ul><ul><li>What countries are these? </li></ul>
  10. 10. Review <ul><li>Rotation is the spinning of the Earth on its axis </li></ul><ul><li>1 complete rotation = 1 Earth day </li></ul><ul><li>Earth rotates from WEST to EAST or counterclockwise </li></ul><ul><li>Earth is tilted at 23 ½ degrees </li></ul>
  11. 11. Revolution <ul><li>The movement of a planet around the Sun in a path called an orbit . </li></ul><ul><li>ORBIT </li></ul>
  12. 12. Revolution OLD STYLE <ul><li>Geocentric – Earth as center of the system </li></ul>
  13. 13. Revolution <ul><li>Earth around the Sun </li></ul>
  14. 14. <ul><li>Earth’s revolution causes change in season. </li></ul>Revolution
  15. 15. Seasons <ul><li>SPRING </li></ul>FALL WINTER SUN SUMMER
  16. 16. :Check <ul><li>Why is it colder during the month of December? </li></ul><ul><li>And why is it hot during April? </li></ul><ul><li>Why does it not snow here? </li></ul>
  17. 17. Review <ul><li>Revolution is a planet’s movement around the Sun </li></ul><ul><li>Orbit is the path followed by a planet </li></ul><ul><li>1 rev. = 1 Earth year = 354 ¼ days </li></ul><ul><li>Earth revolves counterclockwise </li></ul><ul><li>Revolution causes change in season </li></ul>
  18. 18. Earthman, Signing Off… The End

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