friday: bellwork

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