Learning about the physical/chemical properties of water
Here we learned the physical and chemical properties of water such as cohesion, adhesion, pH, polarity, molecules, etc. In this picture we modeled a water molecule, ethanol molecule, and a hexane molucule using magnetic and wooden beads.
Croton Aqueduct
1. Describe the evolution of NYC's sewage system. What were some of the challenges that the city faced in its development of a waste removal system? What are some challenges that still remain?
Swimming
Splish, splash
goes the water
Swish, swash
goes the people
The people enjoy it while they can
Little do they know
that the water is scarce
and is vanishing
because we use it for granted
Acids
Ammonia
Clings to your nose like water clings to paper
Ions increasing
Die if you drink it
Save yourself
New York City's location allow it to become a major region urban center of the world because it is in the middle of the of many clear water that people could drink. Not most of the bodies of water are clean now but before they were. In the 1600's the people created a canal so the people in Europe can transport goods to Manhattan. They weren't exactly connected but when they went through the ocean there was a little route that connected New York and Europe. The many goods that Europe brought then turned into many stores selling mostly everything in the 1920's.
Water Cycle
1) Why is the water cycle an important factor in one of the earth's process?
The water cycle is an important part of the earth's process because without each step of th water cycle, all living things would die because they all need water to hydrate themselves. The water cycle is also an important factor of the Earth because the water keeps the climate of the earth calm. Without it you would be seeing the temperature 80 degrees and then the next day -8 degrees!
2) How does percipitation, condensation and evaportation play a role in the cycle?
Explaining Cohesion an Adhesion
Cohesion: When water sticks to itself.
Adhesion: When water sticks to other things.
1. 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.
