Simple Machines Third Grade SOLs.

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Presentation transcript:

Simple Machines Third Grade SOLs

Inclined Plane Flat surface with one end higher than the other, which allows things to be lifted.

Inclined Plane Video: http://www.youtube.com/watch/?v=E_ErI0QjNos stop at 2:46 Experiment: http://www.youtube.com/watch?v=1NxL13SzLqg Read page E 54 Video: http://www.youtube.com/watch/?v=E_ErI0QjNos stop at 2:46 Experiment: http://www.youtube.com/watch?v=1NxL13SzLqg

Lever Used to push, pull or lift things Has 2 parts- first a stiff bar that moves second a fulcrum- does not move

Video: stop at 4:07 http://www.youtube.com/watch?v=OdM2jWg2uEE Read page E44

Wheel and Axle A rod connected to a wheel This makes it easier to turn things

Video- stop at around 2:00 https://www.youtube.com/watch?v=P7xu9O0miEc Read page E47

Wedge and Screw Used to cut or split objects Is not used to lift things!

Wedge http://www.youtube.com/watch?v=LAAwZird80k Screw http://www.youtube.com/watch?v=YgROcddl6EE Read E55- E56

Pulley Made of a wheel and a rope wrapped around it It makes lifting easier

Video- stop at 3:20 http://www.youtube.com/watch?v=aMx7nIIH9ik Read E 48

Brain Pop Jr. Video http://www.brainpopjr.com/science/forces/simplemachines/preview.weml Bill Nye Video http://www.youtube.com/watch?v=0LnkviArKBA

Compound Machines Two or more simple machines put together Goonie- Truffle Shuffle http://www.youtube.com/watch?v=V-Ln03xgaUc Which simple machines did you see?