Experimento Baca De Vapor

Put the cork into the end of the metal tube making sure its very tight. Carefully poke a hole through the cork with a nail.
Take the two 18-inch lengths ofwire. Wrap the wire around metal tube about one-inch from each end of the tube, and twist the wire tightly with the pliers so the tube is firmly held by the wire andwon't slide.
Cut a boat shape out of the balsa wood, making a triangle bow at one end. Hammer two large nails in each end about one inch in from each end. Thenails will help to stabilize.
Mount the two candles about 1-1/2 inches from each end of the wood. Use loops of masking tape to stick the metal cups to thewood.
Take the tube with the wire and mount the tube so the wire will hold the tube just above the candles. Wrap the ends of the wire around and under the board andtwist the ends neatly on the underside. (See picture.)
Carefully remove the cork from the tube and fill the tube about three-quarters full with very hot water.Tightly replace the cork. Make sure water will drip out the hole in the tube.
Fill up a bath tub or a large sink with water.
Put your boat in the water andask an adult to carefully light the candles
There are two different things to learn here.

A rocket works the same way. Hot gases and fire come out of the motorof a rocket. The gases coming out the nozzle at the bottom of the rocket come out in one direction. These escaping gases push the rocket in the oppositedirection.

Second, energy from the candles changes the water into a gas (water vapor or steam). The steam can escape Steam is used in a lot of energy power plants.