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Fresh Water Chapter 1 Water and Atmosphere
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Lesson 1: Water on Earth
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Which process is visible in the fog? What about in the clouds?
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Evaporation can be used to harvest salt. Can you explain why?
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Evaporation from a power plant. Which state change is occurring here?
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What is this varied process?
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Which processes are occurring?
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This is a diagram of …
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Groundwater Usage and Contributions
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Many organisms live in aquatic environments…
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The Water Cycle is as simple as this…
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Lesson 2: Surface Water
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Lake Hopatcong, which was created by damning two ponds, is the largest lake in New Jersey.
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Lake Hopatcong is an example of A reservoir A reservoir is a manmade lake created by building a dam. The reservoir is a way to store water for human use. Other types of lakes include volcanic lakes, glacial lakes, and rift valley lakes (p.15).
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Types of Lakes The Great Lakes = Glacial LakesCrater Lake = Volcanic Lake in Oregon
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What are the differences between a lake and a pond? Ponds are shallow bodies of still water. Sunlight reaches the bottom allowing plants to grow. Plants, bacteria and algae share the ecosystem with small animals. Lakes are deeper bodies of still water. Sunlight does not reach the bottom and lakes are colder than ponds. Larger fish and organisms can survive in lakes. Bacteria and algae are also present.
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Lake are dynamic features on Earth’s surface. What is lake eutrophication?
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is the process of nutrients (nitrogen and phosphorus) building up in a lake. The nutrients cause an algal bloom (population explosion), which forms a thick layer on the surface of the lake. The algae block sunlight preventing photosynthesizing organisms from the sun. This creates a shift in the food webs and ecosystems of the lake. Dead organisms, nutrients, and sediments begin to fill in the lake. Over time the lake fills in and becomes a meadow. Lake eutrophication
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Lake eutrophication is a natural process which takes centuries. What has the lake below become?
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Fertilizer runoff from agriculture, golf courses, and lands developed for homes. Poor land usage practices can lead to topsoil runoff. Inorganic waste from factories and cities. Excess sediments runoff from mining or from deforestation. How could humans impact lake eutrophication?
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Cultural eutrophication is a much faster process and is driven by manmade factors.
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Name the elevated landform between the two rivers.
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What does a divide separate?
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What is a watershed? Also called a drainage basin, a watershed is land that supplies water to a river system. Smaller tributaries feed the larger rivers making up the river system.
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Where is the closest watershed? Right outside your doorstep!
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Look at the map on p.12 of your textbook. Identify the major watersheds in the United States. Which landform is the divide separating New Jersey from those major watersheds? We need a different map to investigate New Jersey’s watersheds. Watersheds
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Major NJ Rivers
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What is our watershed address? New Jersey’s five watershed regions and major waterways (click) New Jersey’s five watershed regions and major waterways (click) (or click here for online link)here
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Great Egg Harbor Watershed Watershed Region: Atlantic Coastal NJ Watershed Management Area #15
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Why is it important to protect your watershed?
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