This book has a variety of machines including several pneumatic designs. All of the machines are simple enough for kids to build but complex enough to really challenge them. -Karen
Constructions for Children
Summary:
|
|
How can you feel the difference between a first class and a third class lever? Explore a place where simple machines can be found. Challenge a friend to a "Pully Pull-Off". Try to find or make a toy that uses a simple machine.
|
|
|
|
|
|
|