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Science Units » Simple Machines
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Simple Machines
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 Simple Machines The wheel helps move things.    The wheel makes it easier to do some tasks.
The wheel is not a machine unless it has an axle. An axle is the object that attaches the wheel to the  object it's moving.  Wheels move to carry a heavy load.
Wheels help to reduce friction. Friction is what happens when any two things rub against each other. 
When you rub your hands together you can see and feel friction. The inclined plane looks like a ramp. The inclined plane makes it easier to move things. The inclined plane raises a heavy load from a low place to a higher place. For parents who are trying to remember simple machines please scroll to the bottom of the page and click on "Simple Machine - Parent Education" for a quick review!  Want to practice simple machines with a fun game? Click on the link below. Parents Note: Parent help is needed - lots of "big" words to read!
http://www.edheads.org/activities/simple-machines/
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Mrs. Harper's First Grade
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