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I'm Circling And I Can't Stop

Journal Entry:

Write what you think causes Earth to have seasons in your journal.

 
Remember, the sun is the center of our solar system. Like the other planets, the earth revolves around the sun. The earth takes one trip around the sun once each year.
 

Analysis:

Which season does the northern hemisphere have when the north pole points towards the sun?

Which season does the northern hemisphere have when the south pole points towards the sun?

Which season does the southern hemisphere have when the north pole points towards the sun?

Which season does the southern hemisphere have when the south pole points towards the sun?

 

Extension:

You are to use a model to demonstrate Earth revolving around the sun. The tilt of Earth in your model shows how seasons happen.

 

Materials:

  • Globe
  • Tape
  • Electric light with a single bulb
  • Dark room

Procedure:

  1. Place a piece of tape around the equator separating the northern and southern hemispheres.
  2. Turn on the light bulb.
  3. Move the globe around the light bulb - Tape a tack head down on the globe where Utah is. Make sure you keep the tack always facing the sun.
  4. Demonstrate one year of seasons by moving the globe around the light bulb. Stop at every quarter and look at how the sun is shining on the tack. Explain what season it is.
  5. Have the students demonstrate Earth's revolution by standing in a circle and moving once around the sun (with the teacher standing in the center).

 

 

Write a paragraph about what you observed and how your ideas have changed.

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Earths_moon_image

seasons_image

solar_system_image size_motion_distance_image microorganism_image Heat_light_and_sound_image

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Teachers should view the Teacher Site Map to relate Sci-ber text and the USOE 6th grade science core.


Updated October 24, 2008 by: Glen Westbroek

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