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Journal Entry - Take out your science journal and answer the following question(s) (use drawings as appropriate):

How does the appearance of the night sky change with the seasons?


Watch the video clips and answer the following questions in your science journal.

  1. What is actually moving in each clip?
  2. What appears to be moving?

Constellations are in fixed places in the sky. They stay in the same part of the sky throughout the year. As the earth revolves around the sun different parts of the sky are seen. So whatever is in that part of the sky is what we see from Earth. Another example of this would be to think of the town you live in. When you are at your house you only see the things that are in that part of your town. As you go to other parts of your town you see whatever is in that area. Your house is still in the town, but you are no longer in that part so you can’t see your house.

Scroll back up and watch each video clip again.

Now how would you answer these questions? Remember to put this in your science journal.

  1. What actually moved in each video?
  2. What appeared to be moving?
  3. Did your answers change?
Extension Activity


  • Four signs, one for each season
  • Constellations placed in their appropriate season


  •       Label each wall with the season sign.
  •       Hang constellations in each season.
  •       Stand in a circle with your arms extended out to the side.                   You need to face the walls.
  •       Your arms represent the horizon. You can see only what is             within your horizon.
  •       Observe which constellations you can see.
  •       Move counterclockwise (this simulates the earth’s                                                 revolution) 1/8 of the way around the room and observe                         which constellations you can see now.
  •       Repeat Step 6 until you are back to their original position.


Now that you have completed the activity, how did the appearance of the "night sky" change with the seasons?



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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