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     Levers.

    The first tools were strong  branches . With the help of the branches humans moved things.     

You use levers every day without even knowing it.


1. which direction he has to push the bar ?Draw  an arrow .

Alever is a bar that rests on a point.

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    By placing the object to be moved at one end of the bar and pushing down on the other end of the bar  , you can raise the the object.

An axle can change the strength of a turning force.

2. Draw  different types of levers. ( a fishing rod, pulley ,opener etc.)
     

 

 

 

 

 

 

 

 

 

 

 

 

    Grape juice was made by using a press which worked as a lever in old Greece.

 Which direction he has to push the bar?Draw an arrow

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