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Friday: Bellwork IFC.

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Presentation on theme: "Friday: Bellwork IFC."— Presentation transcript:

1 Friday: Bellwork IFC

2

3 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

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

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

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

7 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.

8 Where do we get fresh water?

9 Where do we get fresh water

10 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

11 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

12 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

13 Identify as point source or non point source

14 What are some types of water pollution?
Thermal pollution Chemical pollution Biological pollution Eutorphication

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

16 Chemical Pollution swf When harmful chemicals are added to water supplies Ex – pesticides, fertilizers, acid rain, chem. Waste from factories

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

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

19 Exit: Identify the type of water pollution.

20 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.

21 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

22 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

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

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

26 2. Transportation Roads and train tracks connect urban and rural areas

27 3. agricultural Farming – crops and livestock

28 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

29 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.

30 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

31 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)

32 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

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

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

35 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

36 Land Degradation: Desertification
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

37 Land degradation: Deforestation
Removal of trees and other vegetation Caused by logging, mining, urbanization, and farming.

38 https://www.youtube.com/watch?v=M4jhjt1_eyM deforestation video clip
Listen for 3 causes of deforestion Listen for 2 environmental effects of deforestation

39 Exit: describe the type of land use:

40 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

41 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

42 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.

43 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)

44 How do human activities impact the atomosphere?

45 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

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

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

49 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

50 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

51 What are measures of Air pollution
Air quality – how clean or polluted teh air is Air quality index(AQI) – number telling the quality in a city – higher number = more health hazards

52 How does air quality affect health
Short term – coughing, headaches, and wheezing. Long term – lung cancer, emphysema

53 How do we protect Earths resources
Conservation – the wise use of natural resources How do we protect the Land: Preservation – protecting land from being changed Reforestation – planting new trees Reclamation – fix damaged land areas Reduce Urban sprawl (vertical development in the city) Recycle – recover valuable materials from waste or scrap Soil Conservation – crop rotation

54 How do we preserve water resources
Conservation – use less water Ex. Shorter showers, low flow toilets, better irrigation systems

55 How do we reduce air pollution
Energy conservation Technology – alternative energy sources Laws – limiting amount of toxic chemicals that can be released

56 Bellwork: At the bottom of yesterday’s notes write: How does population impact the environment? - define population – (look up definition on p. 524 of green book) - define carrying capacity – - Draw and label the line graph showing population growth and carrying capacity (figure 3 on p. 525)

57 Lorax – Human impact on the Environment
As you watch the video, look for examples of: Populations Deforestation Desertification point and non point source pollution Water quality urban sprawl Particulates chemical pollution air quality smog carrying capacity


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