Simple Machines

Simple machines make work easier for us by allowing us to push or pull over increased distances. 
There are SIX simple machines: 
Type
Example
Activity
1.   Pulley - How Stuff Works
A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.
old wooden pulley
2.   Lever - Enchanted Learning animations
A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads. 

hammer
3.   Wedge - pictures using LEGO bricks
A wedge is an object with at least one slanting side ending in a sharp edge, which cuts material apart.
iron wedge
4.   Wheel & Axle - Activity using pencils and thread spools
A wheel with a rod, called an axle, through its center lifts or moves loads.
bicycle
5.   Inclined Plane - pictures using LEGO bricks
An inclined plane is a slanting surface connecting a lower level to a higher level.
loading ramps
6.   Screw - Activity using pencil and paper in a new way
A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.
machine screws






























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