Showing posts with label Earth's rotation and revolution. Show all posts
Showing posts with label Earth's rotation and revolution. Show all posts

Monday, December 6, 2010

Earth, Moon, and Sun

Modeling the Earth, Moon, and Sun Movement in Space

Vocabulary: Earth, Moon, Sun, revolve, orbit, revolution, year, month
clipart by www.graphicsfactory.com


Have 3 students represent the 3 objects and demonstrate their relative movements through space.
  • Have 1 student pretend to be the Earth and demonstrate the Earth revolving (orbiting) around the Sun (another student).
  • Then have a student pretend to be the Moon and demonstate the Moon revolving (orbiting) around the Earth.
  • Next have all 3 students work together and demonstrate the Moon revolving around the Earth as the Earth is revolving around the Sun.
(Each student can hold a sign with their 'name' : Earth, Moon, or Sun.)

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Another idea is to have costumes for the students. I 've used t-shirts for the kids that represent the Moon and Earth (bought at a Museum gift shop). For the Sun, I purchased a yellow M&M Halloween costume (after the holiday when it was half price). I did have to cover the M&M sign. If you're crafty you could put a Big S over the M&M sign.

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Another way to demonstrate movement in space is having each child hold a "model" that shows the different sizes of the objects relative to each other. I've used different size balls as models of the Earth, Moon, and Sun.
  • For the Sun, I used a VERY, VERY, VERY  LARGE yellow exercise ball as a model.
  • For the Earth, I've used a blue sponge ball.
  • For the Moon, I've used a very small white styrofoam ball.
(Try to have the diameter of the Moon model be about 1/4 th the diameter of the Earth model and of course for the Sun, use the BIGGEST model that you can find!)




Discuss the fact that it takes 1 year for the Earth to orbit the Sun, and 1 month for the Moon to orbit the Earth.





Here is a video demonstrating the Sun, Earth, and Moon in space.





This can lead into a math lesson on measurement:

  • the number of days in a month
  • the number of days in a year
  • the number of months in a year
  • etc. 
    

    Enjoy!



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