Water: A Portfolio of Student Learning

1. Describe the evolution of NYC's sewage system. What are some of the challenges that the city faced in its development of a waste removal system? What are some challenges that still remain?

In what ways did New York City's location (surrounded by water!) allow it to become a major urban center of the world?  Include in your response the different roles that water played in New York's development throughout history.

What is an aqueduct?

Using your water log (and average water use from the days you logged), calculate what your average water use per year might be.

           My average using my water log would have been about 109,500 liters of water. I got to this estimate because my rounded up average of water usage per day was about 300 liters of water. So, i multiplied 300 by 365 and i got to 109,500 liters of water.

What can you me about acids, bases and testing?         Acids are a class of compounds that have a very sour taste and react to bases and metals. Any liquid under 7 pH is considered an acid. The pH of a substance is the measurment of the hydrogen ions found in that particular substance. A pH ranges from 0 to 14. Higher than 7 pH is consisered a base. A base is a class of compounds that have a bitter taste and react with acids.  For example, vinegar and seltzer are acids. Ammonia is a base because its pH is higher than 7.

1. Why is the water cycle an important factor in one of the earth's process?

          The water cycle is an important factor in one of the earth's process because it is a way that nature purifies our water in a natural way. The water cycle helps feed on things like watering plants, and it not only rains in one place... The water cycle makes sure that some kind of precipitation falls in every single place on earth. Water on earth is used over and over. This helps the water level stay constant.

How can we observe the cohesion and adhesion of water?  Give examples that an average person could understand.  Also, you might use counter-examples, of substances that don't display cohesion or adhesion.