Balancing frogs
The
see-saw is a simple lever. An object at one end can be balanced by placing
an object at the opposite end. To balance an object of a different weight,
the object has to be either moved closer to the fulcrum or further away. Try
balancing these frogs by placing a frog with the correct weight in the correct
position on the see saw.
To play this interactive you must have Shockwave installed.

