Experiment 16-The Water Cycle Model

                                                             Experiment 16

AIM: 

To create a working model of the water cycle that accurately depicts the steps in the water cycle.

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APPARATUS AND MATERIAL REQUIRED: 

1. A clear plastic container
2. Water
3. Food coloring
4. A funnel
5. A piece of string
6. A few ice cubes
7. A small motor
8. A battery

The clear plastic container allows you to see the water evaporating, condensing, and precipitating.

OBJECTIVES:

1. To learn about the steps in the water cycle.
2. To develop understanding of the importance of water in the environment.
3. To have fun creating a working model of the water cycle.

PROCEDURE:

1. Fill the clear plastic container with water.
2. Add a few drops of food coloring to the water.
3. Place the funnel in the container, and tie the string to the end of the funnel.
4. Hang the funnel over the edge of the container.
5. Place the ice cubes on top of the funnel.
6. Attach a small motor to the funnel.
7. Attach a battery to the motor.
8. Turn on the motor.

The funnel allows you to see the water vapor rising into the air and condensing on the cold surface of the funnel.

OBSERVATIONS:

1. The water will evaporate from the surface of the container.
2. The water vapor will rise into the air.
3. The water vapor will condense on the cold ice cubes.
4. The water will drip back into the container.

CONCLUSION:

The working model of the water cycle accurately depicts the steps in the water cycle. The model also shows how water evaporates, condenses, and precipitates.

The working motor causes the water to evaporate, condense, and precipitate.

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