======Ball and String Demonstration======

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[[days:fall2009daybyday:fall2009day15:start|Fall 2009-Day 13]]\\
[[activities:motion:start|Ball and String Demonstration]]\\
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|As Emily clarified many of the moon concepts, questions began arising about the orbit of the earth.\\ \\ \\ Emily: "We think the moon as moving around the earth, but why is it moving around the earth?"\\ \\ *Emily swings the ball and string in a circle above her head*  "Why is the moon moving around the earth?"\\ \\ Student: "because you're swinging it."\\ \\ Emily: "Whats making it go around? Why isn't it just flying off?"\\ \\ Student: "The string!"\\ \\ \\ With the ball and string visual representation, the students were able to see how the earth has a gravitational pull on the moon.| {{:days:fall2009daybyday:fall2009day15:ballandstringdemonstration:emilyswingingthemoon.jpg}}|