Science Project - Chintan Shah 8-1


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Science Project - Chintan Shah 8-1

  1. 1. Earth is mostlyreferred to "blueplanet" or "waterplanet." There is littleto none potable wateron Earth. Potable wateris fresh water that youcan drink anytime.Earth is covered withsalt water. Potable Water – freshwater that can be drank anytime safely
  2. 2. Salinity is how much salt has dissolved in thewater. Many areas in the world have hardwater. Hard water contains highconcentration of minerals calcium andmagnesium. There are also organisms livingin water called E.coli. All this, is removed inwater testing. Water testing is complex. Thereare 2 common ways to make saltwater intofreshwater. They are distillation and reverseosmosis. Water Quality – describes how pure the water is
  3. 3. To test water, the water tester people use a criteria. Here is a table of the criteria: Taste and Odour•Salinity – salt dissolved in Turbiditywater Toxic Substances•Hard Water –highconcentration of calcium Bacteriaand magnesium•Distillation – produces Hardness or Mineral Contentpure water pH•Reverse Osmosis –produces pure water Dissolved Oxygen Solids, including floating materials Dissolved Solids
  4. 4.  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
  5. 5.  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
  6. 6.  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.
  7. 7.  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.
  8. 8. •Lithosphere – solid outerpart of earth. It is made ofhuge piece of rock and arebroken into plates•Glaciers – large bodies orsheets of ice. They are mostlyfound in the northern part ofthe world.
  9. 9.  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 period1. Wind of time2. Temperature Differences in the •Currents – streams water of water that move3. Salinity differences in the water within a large body4. Earth’s rotation of water and is These currents change throughout the caused by 4 things. year though.