Science Project - Chintan Shah 8-1
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Earth is mostly covered in salt water and has little potable fresh water. There are two common ways to make salt water potable: distillation and reverse osmosis. Water quality is tested using various criteria like salinity, turbidity, bacteria, and mineral content.
Science Project - Chintan Shah 8-1
- 2. Earth is mostly referred to "blue planet" or "water planet." There is little to none potable water on Earth. Potable water is fresh water that you can drink anytime. Earth is covered with salt water. Potable Water – freshwater that can be drank anytime safely
- 3. Salinity is how much salt has dissolved in the water. Many areas in the world have hard water. Hard water contains high concentration of minerals calcium and magnesium. There are also organisms living in water called E.coli. All this, is removed in water testing. Water testing is complex. There are 2 common ways to make saltwater into freshwater. They are distillation and reverse osmosis. Water Quality – describes how pure the water is
- 5. To test water, the water tester people use a criteria. Here is a table of the criteria: Taste and Odour •Salinity – salt dissolved in Turbidity water Toxic Substances •Hard Water –high concentration of calcium Bacteria and magnesium •Distillation – produces Hardness or Mineral Content pure water pH •Reverse Osmosis – produces pure water Dissolved Oxygen Solids, including floating materials Dissolved Solids
- 6. A wave is on the water surface caused by the wind. Waves are eroding and depositing gravel and other substances near shorelines. A tide is a change in water level which is caused because the moons gravity. If you see New Brunswick waters, they change every hour. •Wave – found on the water surface caused by wind •Tide – change in water level caused by the moons gravity •Stream characteristics- characteristics of a stream
- 7. Stream characteristics are characteristics of a stream. The characteristics include stream flow •Deposition – rate and the slope of the water beds. stream is depositing Deposition is when a stream is sediments near a depositing sediments near a shoreline or in shoreline or in the water. the water. Erosion is when water and streams •Watersheds – area of land that dissolve limestone and other rocks. drains into one EG: Caves are from that process. main lake Chemical Weathering is when erosion •Continental happens forming caves. Divide – highest point of land on a continent
- 8. Watersheds is all the area of land that drains into one main lake or river. Continental Divide is the highest point of land in a continent. In North America, the major divide is Rocky Mountains. The profile of the river is explained in the image on the next slide.
- 10. Earth is a stable place. Mountains, oceans, and continents. The solid outer part of Earth is called the lithosphere. Made of huge rock it is broken into huge plates that are moving constantly. They sometimes crash causing earthquakes and other natural disasters. These crashing plates also make mountains. That’s how the Rocky Mountains were made. Glaciers are large movie bodies of ice. They are mostly found in the northern part of world. If these cover vast areas of land they are called ice caps.
- 11. •Lithosphere – solid outer part of earth. It is made of huge piece of rock and are broken into plates •Glaciers – large bodies or sheets of ice. They are mostly found in the northern part of the world.
- 12. Climate is the average weather measured over a long period of time. Currents are streams of water that move within a large body of water. •Climate – average This can be caused any of the weather measured following: over a long period 1. Wind of time 2. Temperature Differences in the •Currents – streams water of water that move 3. Salinity differences in the water within a large body 4. Earth’s rotation of water and is These currents change throughout the caused by 4 things. year though.