Bringing the Universe to America's Classrooms
(OBS) Illuminating Earth over a Year

Confirming Relationships

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In this lesson, you worked with data that represents changing daylight times that you have witnessed year after year. You have even considered the Earth–Sun relationship to try to explain opposite seasons in the hemispheres.

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Now show what you have learned.

  • 1. Click on Arrange It to confirm your understanding of Earth’s axis at different points in orbit.
  • 2. Answer the question in the Take Notes section below.

Take Notes

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How does the orientation of Earth’s tilt as you have drawn it at each point in the diagram explain changing daylight hours and evidence of opposite seasons? Support your explanation with evidence from what you have learned throughout this lesson.

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Think of all you have learned about the observed seasonal patterns in both hemispheres and Earth’s tilted axis. Select and place the Earth cards to show how Earth’s tilt appears at these four points in orbit.