1. Which water cycle processes are represented in this model and by what components?
Answer = In this experiment evaporation happened when the warm water created steam and condensation was represented when the water vapor formed on the top of the lid and turned back to liquid water. Sublimation also occurred when the ice cube on top began to melt. Precipitation is another cycle that could have occurred if the top had not been removed for observation. The top would have begin to drip back into the water simulating rain drops.
2. Which processes are not represented? How could the model be altered to include these processes?
Answer = Transpiration, surface run off, infiltration, and percolation were not represented in the conducted experiment. Those cycles could have been simulated by pouring water into a plant and watching for the water droplets to be released from the leaves (transpiration). The water could have been captured in a pan beneath the plant as the leaves leaked (surface run off), pouring the water into the plants soil and being stored there until the plant requires more water is a form of (infiltration) and (percolation) could be represented by the water puddle that forms beneath the plants pot from water overflow which would represent ground water in a saturated area below the earths surface.
3. How would the “weather” be affected if the water was at a decreased temperature? What about at an increased temperature?
Answer = The weather would be cooler if the water temperature is decreased and there may be fewer clouds since clouds usually form over warmer temperatures. The winds would be high blowing cool air to warm regions. When water temperatures are increased and it is warmer, the weather is warmer and more water vapor is formed creating more clouds in the sky. Warmer water temperatures also create humidity because the water vapor is being released creating a humid and muggy climate.
Experiment 1: Water Movement
POST LAB QUESTIONS
1. Develop a hypothesis predicting the effect of sunlight on evaporation?
Hypothesis = Because the heat from the sun will cause the water to warm and vaporize, I predict the bag of water that is exposed to direct sunlight will evaporate and condense faster than the bag which is placed in the shade.
2. Based on the results of your experiment, would you reject or accept the hypothesis that you produced in question 1? Explain how you determined this.
3. What parts of the water cycle are represented in this experiment?
4. How would increasing the proportion of land (sand) to water affect the amount of water vapor released?
5. How would drought conditions impact infiltration and evaporation from the ground?
Any sources utilized should be listed here.