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Why do the constellations change each season? - ARCHIVED

Why do the constellations change each season? - ARCHIVED
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Discuss: After summer, Scorpius disappears from the night sky. How long before we see it again?

Reveal answer

Discuss: How far would the Earth move in its orbit, after half a year?

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Discuss: When it's summer and Lego Man Joe is looking off in this direction, it seems like he should be able to see Orion. Why wouldn't he see it?

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ScorpiusSummer

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Discuss: How many spins does the Earth do in 1 orbit?

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Discuss: How many trips around the Sun have you personally completed?

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Discuss: Which holiday do you get off school to celebrate the Earth’s orbit?

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# Extensions
Below are ideas for extending this topic beyond the activity & Exploration which you just completed.

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Activity Prep

Print Prep
Students will be introduced to the Earth’s orbital movement around the Sun, as a means of seeing why the constellations change.
Preview activity

Each student will need:

  • 1 printed activity sheet (printable PDF, two pages long); Answer Key for teachers
  • 1 brad (paper fastener)
  • 1 small ~2" × 2" piece of white paper
  • 1 blue marker or crayon (brown & green optional)
  • Tape
  • Scissors
  • Glue stick

Exploration

20 mins

Hands-On Activity

25 mins

Extend this lesson

Download this Lesson to your device so you can play it offline:
 
Astronomy Lesson 16: Why do the constellations change each season? - ARCHIVED

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