What causes day and night? 9 10 20 40 30 8 6 2 3 4 5 7 50 60 140 180 120 130 70 170 1 160 150 100 110 90 80 Seconds Left:

The spinning of Earth on its axis, or rotation, causes day and night.

Draw a diagram showing illustrating day and night on Earth. 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Left:

http://starchild. gsfc. nasa. gov/docs/StarChild/questions/question31 http://starchild.gsfc.nasa.gov/docs/StarChild/questions/question31.html

Why do days get longer in the summer? 9 8 10 20 30 7 5 2 3 4 180 6 40 130 140 50 120 70 60 1 160 170 110 150 80 100 90 Seconds Remaining:

During summer in the northern hemisphere, the daylight lasts more than 12 hours because the sun is at it’s northernmost position from the equator. 

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