ACTIVITY 2: WHAT CHANGES TAKES PLACE WHEN WATER IS LEFT IN AN OPEN CONTAINER?CLOSED CONTAINER?
OBJECTIVES:
1.Describe what happens to water when it is left in an open container for sometime;
2.Describe what happens to watet when it is left in a close container;
3. Explain the process that take place after the activity.
PROCEDURE:
1. Prepare 2 pieces shallow container, one with cover and one with do not have cover. Label the container as container 1 and container 2.
2. Pour one tablespoon of water into each container, cover the container 1, and do not cover container 2. Leave it overnight.
3. The following day, check what happen to water in each container.
GUIDE QUESTIONS:
1.Describe what happened to water in container 1.
2. Describe what happened to water in container 2.
3. Compare the volume of water in each container.
4.Where do you think did the water go?
5.Would anything happen differently if you heated container 2? explain your answer.
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Explanation:
Evaporation is the conversion of a liquid to its vapor below the boiling temperature of the liquid. If the water is instead kept in a closed container, the water vapor molecules do not have a chance to escape into the surroundings and so the water level does not change.When you go back to observe the containers, the open container will have lost water. ... Heat from the sun turns liquid water into its gas phase, water vapor. The water vapor then evaporates and is cools back into liquid water and eventually becomes part As the sun heated up the water in the cup, some of the water evaporated into a gas called water vapor. You can't see water vapor, but you can tell that the water has changed from a liquid to a gas because there is less liquid in the cup. ... When the weather is right the water vapor will come together and form raindrops.