This week in our Tuesday class we continued to learn about simple machines by learning about gears. Gears can be classified by the number of teeth. The teeth of the gears mesh together to create movement. A crown gear is a special gear that meshes with a regular gear at a 90-degree angle. An example can be seen below.
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snacks
Snacks that are not sticky or crumbly are excellent choices to eat before team meetings. Archives
March 2015
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