up AREA:Physical Science STRAND: Simple Machines MATERIALS: A playground area with a see-saw Wheel barrow(s) Buckets of dirt or sand (something heavy) CONCEPT: A lever is a simple machine that lifts a load with less effort.
(A lever; is; a simple machine that lifts a load with less effort) (a simple machine; lifts; a load with less effort)
A lever a simple machine
is lifts
a simple machine that lifts a load with less effort
a load with less effort