Today was the second of 3 days that the 3rd grade are learning about simple machines
by working with the mini sets.
April 23, 2010
2 plates between 2 beams
can make a horizontal to vertical joint stable
Gearing up can make the wheel go very fast.
Pulleys can made things move slower or faster at a distance.
The funny faces change.
Levers can be used to make a scale.
Which weighs more?
This critter is made of levers. He can eat leaves that are up
high.
This is a pneumatic lift.
The steering wheel can move the front wheels left and right.
Gears at right angles are used in the merry go round.
Changing size of the gears changes the speed of the merry go round.
Pneumatics moves thing by air.
Switch one way and it is down. Switch the other and it is up.
