Friday, December 12, 2014

The Most Important Machine of All

We're in the middle of a science unit about simple machines. Yesterday we read about wedges. Today is about the wheel. So, yeah, it's round and rolls. Yippee.

Tell that to these guys. Boring? Uh, I don't think so.

As you watch, look for the wheel (easy) and the axle (not as easy). An axle often connects two wheels, like on a wagon, but there is an axle here even though there's only one wheel. Remember, a wheel rotates around an axle. Do you see it?

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