Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of work--lift and lower, separate, and open.

Includes index.

The robots' workshop -- Archimedes' claw -- A very tall lever -- Picking up the paint -- Fishing with a lever -- Kinds of lever -- Lots of levers -- Digger -- Robbo's science -- Workshop.