Glycerin. Glycerin is an ingredient that can be found in many beauty products because of its moisture locking properties. It is a form of sugar alcohol that is available naturally in vegetable oils and can also be the byproduct of soap making.
Definition of wheel and axle : a mechanical device consisting of a grooved wheel turned by a cord or chain with a rigidly attached axle (as for winding up a weight) together with the supporting standards
A screwdriver is an example of a wheel and axle. An axe is an example of a wedge. Scissors are an example of a lever. A ramp is an example of an inclined plane. A faucet is a â¦ n example of a screw. A flag pole is an example of a pulley.