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Bell Ringer

Bell Ringer. What are the components in dirt ( what is dirt made of)?. Unit 3, Chapter 7: 2 days research, 1 day presentation. The job of your group is to create a presentation of the following:

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Bell Ringer

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  1. Bell Ringer • What are the components in dirt ( what is dirt made of)?

  2. Unit 3, Chapter 7: 2 days research, 1 day presentation The job of your group is to create a presentation of the following: Venn Diagram, comparing and contrasting Weathering and erosion. (4 points-labels(2) and definitions(2)) 2. Venn Diagram, comparing and contrasting Chemical and Physical weathering. Be specific, list examples of each. (6 points- labels(2) and examples(4)) Explain the factors that affect weathering. (3points) Create a sentence, in your own words that explains: water erosion, wind erosion, ice erosion, gravity erosion, and the effect they each have on landforms.(5 pints-1 points each) You can create a Power Point, a Book, A Song, a Video…or anything else you can think of. Diagrams must be labeled and points will be awarded for creativity, neatness and listening. (3 points-1 point each) Total points-21 points

  3. Bell Ringer • What did you do well in your previous presentation? • What would you like to improve upon?

  4. Unit 3, Chapter 8 • Mass movements is the movement of Earth downhill due to gravity. Wind and glaciers are also considered here because they move large masses of Earth. Glaciers are said to have been as far south as Georgia and as they melted they carved out the land and created U-shaped valleys and even help shape to Rocky Mountains. The Earth is dynamic and always changing , ON ITS OWN, keep this in mind when we talk about Global Warming

  5. Your job as a group: 3 days:2day intro and research, 1 day presentations • Create a toondoo explaining your mass movement. Need definition and human impact. • Your grade will consist of the following: • 1 point Neatness • 1 point Creativity • 1 point Listening Skills as an audience member • 1 point Accuracy • 1 point How well you present your material ( do you know it and can I hear you)

  6. Unit 3, Chapter 9 • What are the steps to the water cycle (what makes it rain)?

  7. Runoff

  8. Factors that effect Hydrologic Cycle • Vegetation • vegetation = water in soil • Clumps form if there is very little veg. = little water can infiltrate into deep layers of soil • Little veg. also cause wind erosion • Precipitation • rain= infiltration • Soil Composition (sand, silt, clay) • Sand = little water holding capacity • Clay = more water holding capacity

  9. Natural Food Web of a Lake Plants add oxygen & waste Animals use oxygen and add waste They ALL die and add nutrients Increase nutrients from watershed causes a change in organisms = eutrophication Eutrophication

  10. What is a flood? What is a flood plain? What causes floods? How can we help people that are threatened by floods?

  11. http://www.school.eb.com/eb/art-84193/Disaster-struck-Venice-on-November-4th-1966-when-the-cityhttp://www.school.eb.com/eb/art-84193/Disaster-struck-Venice-on-November-4th-1966-when-the-city http://www.school.eb.com/eb/art-106711/An-extensive-engineering-project-called-the-Delta-Project-protects-the http://www.school.eb.com/eb/art-16467/A-desert-thunderstorm-and-flash-flood http://www.school.eb.com/eb/art-82625/Learn-about-the-fossil-findings-that-some-believe-prove-there

  12. Bell Ringer What human activities impact the quality of drinking water?

  13. Hot springs have temperature higher than that of the human body.Hot springs are heated by the Earth’s internal temperature.Most hot springs are found in the Western US near volcanic activity.

  14. Geysers are EXPLOSIVE hot springs • They erupt at regular intervals • Old Faithful – at Yellowstone National Park erupts every hour

  15. How Geysers Work • For geyser to occur there must be heat, water, and a plumbing system. • A magma chamber provides the heat, which radiates into surrounding rock. • Water from rain and snow works its way underground through fractures in the rock. • As the water reaches hot rock it begins to rise back to the surface, passing through former volcanic ash or lava rich in silica. The hot water dissolves the silica and carries it upward to line rock crevices. This forms a constriction that holds in the mounting pressure, creating a geyser's plumbing system. • As superheated water nears the surface, its pressure drops, and the water flashes into steam as a geyser. • Hot springs have unconstricted plumbing systems.

  16. You tubehttp://www.youtube.com/watch?v=Wao-8zcRiTA&feature=related

  17. Original water level – the level after being pumped= drawdown Precipitation and runoff add water to the aquifer this is called recharge. What happens if we pump TOO much water?

  18. Aquifer- permeable underground layers through which groundwater moves.Aquicludes- impermeable layers. Wells are holes drilled deep into the ground to reach water. They must tap into an aquifer. The deeper the aquifer the less likely it is to be contaminated.

  19. Threats!! • Overuse • Subsidence- too much pumping of a well leads to sinking of the land • Pollution-sewage, factories, gasoline, agriculture chemicals (fertilizer). • Chemicals- chemicals are broken down and transported as ions or molecules which cannot be filtered out- arsenic is a molecule that is always present in drinking water everywhere. • NaCl- too much salt is bad. Many coastal areas have problems with salt contamination. • Radon-radioactive-CANCER! From the radioactive decay of uranium in rocks, • Granite and shale contain more radiation than other rocks, cities with a high concentration of granite and shale also have a higher concentration of radiation leaking into their water supply.

  20. http://www.school.eb.com/eb/art-18408/Creation-of-caves-by-groundwaterVimeo Videohttp://vimeo.com/11050821You tubehttp://www.youtube.com/watch?v=c4GZSjVpbdg

  21. Bell RingerWhat type of water do you drink at home?What type of water would you prefer to drink?

  22. Water Quality Test We will test various water samples for Chlorine, Hardness, Alkalinity and pH. Materials: water samples, test strip Safety: goggles Procedure: To test your water sample: transfer your water to a beaker Place the strip in the water for 1 second Take the strip out and place it level on the table for 30 seconds) DO NOT SHAKE Background/ Analysis The normal values are as follows: Chlorine (needed for clean water)= 0.1 -0.4 Hardness (waters ability to get soap out, or you get kidney stones)= 61-120 Alkalinity (low levels could cause metal from your pipes to get into your water)= 80 pH= 8.5 ( We have talked about this before…what happens if the water is too acidic, think rain? What happens if the water is too basic, think eutrophication?

  23. Conclusion:Of all of the water samples tested which one was the best? Data:

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