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Friday: Bellwork

Friday: Bellwork. IFC. Bellwork : Tuesday. T/F Energy from the sun can be used to make electricity All of earths resources will last forever Food, cloth, rope, lumber, paper and rubber all come from plants Human activity can negatively affect earths resources. Tuesday:.

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Friday: Bellwork

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  1. Friday: Bellwork • IFC

  2. Bellwork: Tuesday • T/F • Energy from the sun can be used to make electricity • All of earths resources will last forever • Food, cloth, rope, lumber, paper and rubber all come from plants • Human activity can negatively affect earths resources

  3. Tuesday: • EQ: How do humans impact earth’s natural resources. • Think central digital lesson: Unit 4, lesson 1

  4. Wednesday - BELLWORK IFC: Is water a renewable or nonrenewable resource? EXPLAIN List some reasons why you need water.

  5. EQ: How do humans impact water resources OBJ: I can identify sources and types of water pollution Human impact on Earth

  6. Why is Water important? • Water shapes earth’s surface • Affects weather and climate • Vital for life: Every living thing is made up of water and life processes use water.

  7. Where do we get fresh water?

  8. Where do we get fresh water

  9. Where do we get fresh water • Surface Water – water above ground • Snow, ice, rivers, streams, lakes • Ground Water – water in spaces below earth’s surface • In aquifers – a body of rock or sediment that can store a lot of water – allows it to flow

  10. What are water quality and Supply • Water quality – measures how clean or polluted water is • Water supply – measures the availability of water. influences where farmers grow crops influences where cities are built Potable water – drinkable water

  11. What threatens fresh water quality • Water pollution – when waste or other material is added to water so that it is harmful to organisms that drink it or live in it. • Point source – comes from one specific source Ex: chem. Spill, factory waste • Non-point source – comes from many small sources, more difficult to identify. Ex city street run off, fertilizer run off, mines

  12. Identify as point source or non point source

  13. What are some types of water pollution? • Thermal pollution • Chemical pollution • Biological pollution • Eutorphication

  14. Thermal pollution • Heating of water sources • Ex power plants release warm water that has been used to cool equipment

  15. Chemical Pollution • http://www.tourdeturtles.org/flash/WaterQuality.swf • When harmful chemicals are added to water supplies • Ex – pesticides, fertilizers, acid rain, chem. Waste from factories

  16. Biological Pollution • Live or dead organisms are added to water supplies. • Waste water – used in homes contains bacteria and other microbes

  17. Eutrophication • Increased nutrient levels in water from fertilizer run off cause fast growth of algae • Kills fish

  18. Exit: Identify the type of water pollution.

  19. How is water treated? • Screens take out large debris • Chemicals clump smaller particles together • The clumps drop out of the water which removes harmful microbes • Air is bubbled through the water to make it potable.

  20. Bellwork T/F • Urban areas have more open areas than rural areas do • Many building materials are made from land resources • Soil provides a habitat for plants but not animals • Soil can erode when trees are removed from areas • All of earths resources will last forever • Food, cloth, rope, lumber, and paper come from plants • Human activity can negatively affect earths resources

  21. EQ: What effect do humans have on land? • Obj. I can describe human impacts on land because I can list types of land use and identify types of land degradation

  22. Why is land important? Provides: • Supplies solid surface for buildings and roads • Nutrients for plants • Habitat for animals • ProvidesFossil fuels and minerals

  23. What are different types of land use?1. Recreational • Natural areas that humans have left alone (wild places) • Ex. Hiking, mt. climbing

  24. 2. Transportation • Roads and train tracks connect urban and rural areas

  25. 3. agricultural • Farming – crops and livestock

  26. 4. Residential – where people live • Rural areas • Low density population • Areas of open land • Urban areas • Densely populated • Small amount of natural land • Urbanization – growth of urban areas caused by people moving into urban areas • Land is replaced by buildings and parking lots

  27. 5. Commercial and industrial • More business and factories replace land and use land resources (trees, soil, minerals) • List 2 types of commercial or industrial land use that you can see around the school.

  28. What are different types of land use Pair Share: Imagine you live here. Choose any of the land uses shown and describe why it might be important to you

  29. Label the types of land use seen in the picture below (Assume the restaurant sells the coconuts from the trees and there is a road between the hotel and the condos that leads to the beach)

  30. How do human activities affect land and soil?: • Land Degradation - process by which human activities and natural process damage land so it cannot support an ecosystem

  31. Land degradation: Urban sprawl • When cities spread out • Shopping centers, roadsand housing replace land • Less soil = more runoff from the parking lots

  32. Land Degradation: erosion • Wind, water, gravity transport soil and sediments. • , fewer trees = more erosion and land degradation

  33. Land degradation: Nutrient Depletion and pollution • As farmers plant the same crops in the same place, the nutrients are depleted • Industrial pollution and chemical wastes – kill organisms in the soil

  34. Land Degradation:Desertification • https://www.youtube.com/watch?v=w9RxnuBiFbg As you watch: what is desertification What causes desertification • Over time, the land becomes desertlike and unable to support life • Caused by overgrazing, logging, and soil erosion

  35. Land degradation:Deforestation • Removal of trees and other vegetation • https://www.youtube.com/watch?v=M4jhjt1_eyM • Caused by logging, mining, urbanization, and farming.

  36. https://www.youtube.com/watch?v=M4jhjt1_eyMdeforestation video clip • Listen for 3 causes of deforestion • Listen for 2 environmental effects of deforestation

  37. Exit: describe the type of land use:

  38. bellwork 1. Name 4 uses of Land 2. The bar graph below compares the populations of four places—A, B, C, and D. Each area is the same size. • · Which bar most likely shows an urban area? Why? • · Which bar probably shows a rural area? Why? • · Which bar most likely shows a natural area? Why? 3. What is land degradation? Name 5 types

  39. Bellwork • What is deforestation? • What is desertification • What are nitrates? • Nitrates are used in What kind of water pollution is this? • What happened to the Nitrate level from 1993 to 2003? • During which 2 years did the nitrate level increase the most? • What kinds of human activity could have increased the nitrate levels in the water

  40. Bellwork: • Get out a new piece of notebook paper. You will be taking your own Cornell notes today. • Copy the title of the section on the top: Human impact on the Atmosphere • Below it write the EQ: How do humans impact the atmosphere? 4. Below that, write the objective: I can describe human impact on the atmosphere because I can list and describe types of air pollution 5. Make a column in the far left margin for the questions you will answer as you read the text.

  41. Atomosphere Notes: • Human impact On The atomosphere: Answer the following questions in Cornell Notes form on another piece of paper: Be sure to write the question. • Why is the atmosphere important (3 reasons) • Define Greenhouse Effect • What is Air pollution (give 2 examples) • What pollutants form from Vehicle exhaust (name 2) • What is smog • What is acid precipitation • What are the effects of acid precipitation • What is air quality and how is it measured (2 ways) • How does air pollution impact health (copy chart of short-term and long term effects)

  42. How do human activities impact the atomosphere?

  43. Why is air important? • Provides gases we need to survive • Absorbs radiation • Keeps earth warm Green house effect – gases in the atmosphere absorb and give off thermal energy

  44. What is Air pollution • The contamination of the atmosphere by human and natural sources • Natural = volcanos, fires, dust storms • Human = burning fossil fuels, manufacturing

  45. What are types of air pollution • 1. gases – carbon dioxide, sulfer, nitrogen oxide • 2.Particulates – solid suspended in air or water (smoke, ash)

  46. 4. Pollutants come from cars • Ground level ozone – from sunlight reacting with vehicle exhaust • Smog – when ground level ozone and vehicle exhaust react with sunlight

  47. 5. Acid rain • Rain, sleet or snow that contains acids from air pollution • Form when atmospheric acid reacts and forms sulfuric and nitric acid • Causes change in soil and water acidity and affects plant and animal habitats

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