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The Tipsy Earth

 
Notice that Earth's axis is tilted. The Earth’s axis always tilts towards Polaris (the North Star). As Earth revolves around the sun, the hemisphere leaning towards the sun changes. If the northern hemisphere is leaning towards the sun, it is summer. When the northern hemisphere leans away from the sun, it experiences winter. When the northern hemisphere leans neither towards nor away from the sun it has fall or spring. Using the graphic above, observe the axis as the earth revolves around the sun.
 

Journal Activity

Draw the same diagram that appears at the right. Now add an axis to the other three "Earth" images in the diagram. Make sure that the axis is tilted correctly for each image. Click on the image to check your answer.
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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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