An inclined plane - Is a flat surface with a raised end. It makes easier to move heavy objects from one level to another., A wedge - is made up of two inclined planes, put back to back. We use a wedge to split an object apart, A screw - is an inclined plane wrapped around a cylinder. We use it to hold objects together, A lever - is a long bar that moves around a fixed point called a fulcrum. It allows us to lift heavy objects, A pulley - is a wheel with a rope. It helps us lift or lower a heavy load more easily., A wheel and axle - Consists of a rod attached to a wheel. It reduces friction making it easier to move objects.,

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