friday: bellwork
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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:. - PowerPoint PPT PresentationTRANSCRIPT
FRIDAY: BELLWORK
IFC
BELLWORK: TUESDAY
T/F1. Energy from the sun can be used to make
electricity2. All of earths resources will last forever3. Food, cloth, rope, lumber, paper and rubber
all come from plants4. Human activity can negatively affect earths
resources
TUESDAY:
EQ: How do humans impact earth’s natural resources.
Think central digital lesson: Unit 4, lesson 1
WEDNESDAY - BELLWORKIFC:
Is water a renewable or nonrenewable resource? EXPLAIN
List some reasons why you need water.
HUMAN IMPACT ON EARTH
EQ: How do humans impact water resources
OBJ:I can identify sources and types of water pollution
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.
WHERE DO WE GET FRESH WATER?
WHERE DO WE GET FRESH WATER
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
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 cropsinfluences where cities are built
Potable water – drinkable water
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
IDENTIFY AS POINT SOURCE OR NON POINT SOURCE
WHAT ARE SOME TYPES OF WATER POLLUTION?
Thermal pollution Chemical pollution Biological pollution Eutorphication
THERMAL POLLUTION
Heating of water sources Ex power plants release warm water that has
been used to cool equipment
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
BIOLOGICAL POLLUTION
Live or dead organisms are added to water supplies.
Waste water – used in homes contains bacteria and other microbes
EUTROPHICATION
Increased nutrient levels in water from fertilizer run off cause fast growth of algae
Kills fish
EXIT: IDENTIFY THE TYPE OF WATER POLLUTION.
HOW IS WATER TREATED?1. Screens take out large debris2. Chemicals clump smaller particles together3. The clumps drop out of the water which
removes harmful microbes4. Air is bubbled through the water to make it
potable.
BELLWORK
T/F1. Urban areas have more open areas than rural
areas do2. Many building materials are made from land
resources3. Soil provides a habitat for plants but not animals4. Soil can erode when trees are removed from areas5. All of earths resources will last forever6. Food, cloth, rope, lumber, and paper come from
plants7. Human activity can negatively affect earths
resources
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
WHY IS LAND IMPORTANT?
Provides: Supplies solid surface for buildings and roads Nutrients for plants Habitat for animals ProvidesFossil fuels and minerals
WHAT ARE DIFFERENT TYPES OF LAND USE?1. RECREATIONAL
Natural areas that humans have left alone (wild places)
Ex. Hiking, mt. climbing
2. TRANSPORTATION
Roads and train tracks connect urban and rural areas
3. AGRICULTURAL
Farming – crops and livestock
4. RESIDENTIAL – WHERE PEOPLE LIVE
Rural areasLow density populationAreas of open land
Urban areasDensely populatedSmall amount of natural land
Urbanization – growth of urban areas caused by people moving into urban areas
Land is replaced by buildings and parking lots
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.
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
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)
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
LAND DEGRADATION: URBAN SPRAWL
When cities spread out Shopping centers, roadsand housing replace
land Less soil = more runoff from the parking lots
LAND DEGRADATION: EROSION
Wind, water, gravity transport soil and sediments.
, fewer trees = more erosion and land degradation
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
LAND DEGRADATION:DESERTIFICATION https://www.youtube.com/watch?v=w9RxnuBiFbg As you watch: what is desertificationWhat causes desertification Over time, the land becomes desertlike and
unable to support life Caused by overgrazing, logging, and soil erosion
LAND DEGRADATION:DEFORESTATION
Removal of trees and other vegetation https://www.youtube.com/watch?v=M4jhjt1_e
yM
Caused by logging, mining, urbanization, and farming.
HTTPS://WWW.YOUTUBE.COM/WATCH?V=M4JHJT1_EYM
DEFORESTATION VIDEO CLIP Listen for 3 causes of deforestion
Listen for 2 environmental effects of deforestation
EXIT: DESCRIBE THE TYPE OF LAND USE:
BELLWORK1. Name 4 uses of Land2. 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
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 to2003?
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
BELLWORK:1. Get out a new piece of notebook paper. You will
be taking your own Cornell notes today.
2. Copy the title of the section on the top: Human impact on the Atmosphere
3. 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.
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)
HOW DO HUMAN ACTIVITIES IMPACT THE ATOMOSPHERE?
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
WHAT IS AIR POLLUTION
The contamination of the atmosphere by human and natural sources
Natural = volcanos, fires, dust storms
Human = burning fossil fuels, manufacturing
WHAT ARE TYPES OF AIR POLLUTION
1. gases – carbon dioxide, sulfer, nitrogen oxide
2.Particulates – solid suspended in air or water (smoke, ash)
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
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
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
HOW DOES AIR QUALITY AFFECT HEALTH
Short term – coughing, headaches, and wheezing.
Long term – lung cancer, emphysema
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
HOW DO WE PRESERVE WATER RESOURCES
Conservation – use less water Ex. Shorter showers, low flow toilets, better
irrigation systems
HOW DO WE REDUCE AIR POLLUTION
Energy conservation Technology – alternative energy sources Laws – limiting amount of toxic chemicals that
can be released
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)
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 Particulates carrying capacity