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Simple Machines Grades 3-4 Created by: Audrey Janco.

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Presentation on theme: "Simple Machines Grades 3-4 Created by: Audrey Janco."— Presentation transcript:

1 Simple Machines Grades 3-4 Created by: Audrey Janco

2 Simple machines are used every day to make our lives easier. A flagpole is an example of a simple machine.

3 There are six simple machines. Pulley Lever Wedge Wheel and axle Inclined Plane Screw

4 Pulley A pulley is a simple machine that uses grooved wheels and a rope to raise.

5 Levers A lever is a stiff bar that rests on a support called a fulcrum which lifts orr moves loads. Scissors are an example of a lever we use daily.

6 Wedge A wedge is an object with at least one slanting side ending in a sharp edge. Can you name this wedge?

7 A wheel and axle consists of a wheel with a rod called an axle through its center that lifts or moves loads.

8 Inclined Plane An inclined plane is a slanting surface connecting a lower level to a higher level.

9 Screw A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.

10 See how many simple machines you can name.


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