SONG: THE SIMPLE AND COMPLEX MACHINES
SIMPLE MACHINES
SIMPLE MACHINES
Pulley
Inclined plane
Wheel
Lever
Screw
DRAG AND DROP
COMPUTERS ARE COMPLEX MACHINES
TAKING A LAWNMOWER ENGINE APART
TAKING APART A MOBILE PHONE
ELECTRICITY
CHANT: ELECTRICITY
SONG: ELECTRICITY
INVENTORS AND INVENTIONS
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