National geographic Typical person

1

• National geographic Typical person
• http//www.youtube.com/watch?v4B2xOvKFFz4
• Human population growth
• http//www.youtube.com/watch?vsc4HxPxNrZ0
• Public Service Announcement Example
• http//www.youtube.com/watch?v_i5DVKzKGLQ

2

• Turn in Biosphere Squares at LAB STATION 1
• Take out your SCIENCE JOURNAL
• Have your PROBLEM SOLVING on your desk so we can
  check after our journal entry.

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Entry 9 2/8

• Explain the INTERDEPENDENCE found within an
  ecosystem.
• When explaining your answer be sure to include
  the carbon cycle, energy transfer, and biotic
  relationships

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Date Entry

• Mythbusters Videodiscoveryeducation.comAre cows
  causing global warming?

• Independent Variable?
• Dependent Variable?
• Background info what do they tell us about
  methane
• How much methane does one cow produce?
• Why is methane bad for the environment?

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Warm-up Jan. 2 68

• Human Population
• vs.
• Environmental Problems
• As best as you can determine the connection
• between Human Population Environmental
• Problems.

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Warm-up Feb. 8th Entry 12Use the picture
to write a definition and draw a picture to
represent the word BIODIVERSITY
Sustainability Wise use of earths resources to
provide the best for people AND the environment
both NOW and in the FUTURE

• Biodiversity
• Variation in the different species that live in
  an ecosystem. Depends largely upon the variation
  of plant life, which depends on the amount of
  precipitation.

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More people Bubble Chart

• As a group make a bubble chart with ALL of the
  possible effects of a growing population will
  have on the environment and society as a whole
• MORE people might mean.

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Warm-up Feb. 8th Entry 12

• Use the words birth or death to fill in the
  blanks
• In order for populations to INCREASE the ______
  rate must exceed the _____ rate.
• When populations decrease the _____ rate exceeds
  the ____ rate.

Which population is growing faster? How do you
know?
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Lets think about this
MORE people might mean.
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Unit 3 Human Impact
Help!!!!!
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Human Population GrowthToo many people
environmental problems!

• What caused human population growth?
• Causes
• Agricultural Revolution- more food to support
  more people
• Industrial Revolution- improvements in
  technology, and medicine, increased birth rate
  and decreased death rate
• Urbanization development of cities, economic
  and social development

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Human population Growth J curve
13
Effects of Human Population Growth

• Overcrowding
• Increase in pollution- ALL environmental problems
  relate back to human overpopulation!
• Decrease of Natural Resources More people
  require more resources
• Increase land use

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Solution

• Zero Population Growth birth rate death rate
  china offers tax incentives for having one child
  education, birth control
• Conservation wise and careful use of resources
• Reduce use less materials
• Reuse use products more than once
• Recycle return products to be reprocessed
• Sustainability ensuring the availability of
  resources and a stable environment for future
  generations.

15
Whats in a Histogram? Ages, percent of males and
females in the populationWhat can a histogram
reveal? An increasing, stable or decreasing
population
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Public Service Announcement Assignment

• Did you answer /address these questions
• Clear Introduction and important background
  information about the topic
• How has the overpopulation of humans contributed
  to this environmental problem?
• What are the short-term effects for the
  environment/ecosystems if nothing is done to
  change human behavior? (locally and globally)
• What are the long-term effects for the
  environment/ecosystems if nothing is done to
  change human behavior? (locally and globally)
• What should people do to help stop this problem?
• Speak clearly and able to be easily understood

• OBJECTIVE
• You will create a Call to Action public service
  advertisement using iMovie to address the issues
  that increased human population size has had on a
  specific environmental problems in North Carolina
  and the world. This will be a SHORT video
  delivering the FACTS and the changes need to
  solve the problem.
• GUIDING QUESTION What impact does human
  population size have on the environment?

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RESEARCH news articles and opinion pieces on
human population trends and related environmental
and social issues. See the topics below. Each
person should sign up for ONE topic to research.

• Within your group there should be at LEAST ONE
  article summary related to global issues , one
  article summary related to a LOCAL issue.
• Cite your source on the index card. Write a
  summary (in YOUR OWN words) on your card
  explaining the MAIN ideas of the article. (How
  does overpopulation of humans relate to this
  environmental issue?) Tape or paste these cards
  onto your bubble chart.
• Air pollution
• Land use
• Climate change
• Migration/Immigration
• Deforestation
• Public health

• Social security
• Energy
• Waste management
• Food resources/Hunger
• Water resources
• Housing and homelessness
• Economics
• Resource use/Consumption
• Endangered species

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Warm-up Feb. 11th Entry 13
Global warming too much CO2 in atmosphere
increases average global temperature this could
cause ?flooding, climate change, stronger storms,
rising sea levels

• Ozone depletion
• Caused by CFCs -(chlorofluorocarbons) destroy
  ozone layer this increases UV radiation
  exposure which increases skin cancer and crop
  damage IS NOT RELATED TO GLOBAL WARMING!!!

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(No Transcript)
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Global Warming unnatural warming of the Earth

• Cause Excessive greenhouse gases (carbon dioxide
  CO2 and methane CH4) in the atmosphere trap heat,
  leading to an abnormal increase in earths
  surface temperature
• CO2 comes from burning fossil fuels
• CH4 from landfills and cow farts!

21
Effect Its like the earth has a fever!Have you
seen the movie The Day After Tomorrow?

• increase in temperature (2-4 degrees Celsius),
  weather patterns will change worldwide, polar
  ice caps may melt, flooding coastal cities and
  contaminating drinking water with saltwater.

22
Ozone Depletion Has nothing to do with global
warming!

• Cause CFCs (chlorofluorocarbons), once used as
  refrigerants and in aerosol cans destroy ozone
  molecules in the upper atmosphere leading to
  thinning or a hole

UV radiation is NOT heat!!!!
23
Ozone depletion

• Effects
• Harmful UV radiation reaches earth causing
  increased numbers of sunburns, skin cancer,
  cataracts (leading to blindness), and crop damage.

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(No Transcript)
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Group Global Warming Activity

• Each group has a different topic describing one
  effect of global warming.
• In your folder you have
• A copy of an article for each person to read
• Each person will answer the questions on a
  separate sheet of paper in complete sentences in
  your OWN words.
• Each person will draw and complete the graphic
  organizer on their own paper.
• Each group will creatively display the
  information from their graphic organizer in the
  educreation app (take a picture of the graphic
  organizer and each person explains a portion)
• Each person is expected to speak/talk about their
  topic. Hi this is _________ and I am going to
  explain _______.
• implications means consequences
• Cindy.kendrick_at_cms.k12.nc.us password is
  students

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Interpreting the graphic organizer

• Cause (what is the reason for the situation)
• Event (what is happening as a result of the
  cause)
• Effects (the result)
• Implications (consequences)
• Solutions (how can we fix this problem)

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Ticket Out the Door

• 1. What three events allowed for the fast growth
  of human population?
• 2. What type of curve does human population
  growth look like when graphed?
• 3. Is the Country pictured in the Histogram a
  stable or developing country?
• 4. What is the cause of Global Warming?

28

• Acid rain
• http//www.youtube.com/watch?v7xd_0t55mUY

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Warm-up Feb. 12th Entry 14

• Seven students argued about what they thought
  were the major human causes of global warming.
  Here is what each of them thought
• Maria acid rain
• Natalie burning coal
• Tessa the fuel we use in our cars
• Anita toxic chemicals in air pollution
• Raul the thinning of Earths ozone layer
• Van the growing landfills
• Blaine the CFCs from refrigerators
• Write out the causes that you agree with.
  Explain why you agree.

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Acid Rain

• Cause emissions (sulfur and nitrous oxides from
  cars and factories react with oxygen and water)

31
Blue ridge spruce and acid rain
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Acid Rain

• Effects A lowered pH disrupts aquatic
  ecosystems,
• makes soil less fertile, harms plant life, and
  damages human property.

33
Water Quality

• Cause sediments, oil, fertilizers from land,
  illegal dumping, acid rain, raw sewage, heated
  water from power plants
• Effect Disease, habitat destruction

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Group Global Warming Activity

• Each group has a different topic describing one
  effect of global warming.
• In your folder you have
• A copy of an article for each person to read
• Each person will answer the questions on a
  separate sheet of paper in complete sentences in
  your OWN words.
• Each person will draw and complete the graphic
  organizer on their own paper.
• Use an iPad to take a picture of a NEAT and
  filled out picture of the graphic organizer.
• Each group will PRESENT their information/findings
  to the class. This means EVERY person will
  EXPLAIN a part of the graphic organizer. This
  does not mean you will be READING what is on the
  picture but EXPLAINING based on information from
  the article.
• implications means consequences

35
Warm-up Feb. 13th Entry 15

• Biomagnification

• Pesticides and TOXIC CHEMICALS move up the food
  chain
• Chemical contaminants are stored
  (bioaccumulation)in the CELLS of living organisms
  (they do not get broken down.
• TOXIC CHEMICALS are magnified in organisms
  higher up the food chain because predators
  accumulate pesticides in the bodies of their
  prey.

http//www.youtube.com/watch?vE5P-UoKLxlA
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Biomagnification Demonstration

• Small beakers represent ALGAE
• Medium beakers represent FISH
• Large beakers represent EAGLE

• Draw a food chain and include arrows pointing to
  the consumers
• Label the trophic levels
• As pesticides are passed from one to the next.
  Write down the NUMBER of pesticides in EACH
  organism

37
Lets use PAC-Man for our example..

• The dots represent pesticides (toxic chemicals)
  in the environment
• WHO gets more? Pac-Man or Pinky?

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What is BIODIVERSITY??
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Biodiversity Loss/ Habitat Destruction

• Causes
• Deforestation cutting down forests for wood, and
  farming
• Draining/filling wetlands
• Bioaccumulation
• Greatest accumulation in lower organisms in the
  food chain
• Biomagnification
• Magnified greatest in organims higher in the food
  chain
• Endangerment/extinction Endangered species are
  at risk of becoming extinct. Extinction refers
  to the loss of a particular species.

http//www.youtube.com/watch?vE5P-UoKLxlA
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(No Transcript)
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Technology

• Satellites track changes global temperature and
  the ozone layer
• Ice Core Analysis Measure gases (CO2) that were
  once in atmosphere
• Census Data

http//ozonewatch.gsfc.nasa.gov/Scripts/big_image.
php?date2012-12-29hemS
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Census Data

• Developing Stable

43
Ticket out the Door

• 1.What is biomagnification?
• 2. What is bioaccumulation?
• 3. What organisms are most affected by
  biomagnification?

44

• ADD BIOMAGNIFICATION (with a definition) to your
  bubble chart
• Station rotation
• Read article summaries and take notes
• Watch video about global warming and take notes
• Go back to your original BUBBLE chart and ADD
  information in a DIFFERENT color or by STARRING
  the info so that I know it was added. You should
  add 5 NEW things to your chart .

45
Ticket Out the Door

• 1.What three events allowed for the fast growth
  of human population?
• 2. Use the histogram to determine if the
  population is increasing or decreasing. Explain
  how you know.
• 3.Explain how Global warming and Ozone depletion
  are NOT related.
• How are they different??

46
Warm-up

• Environmental Problems

• Overpopulation cause of all environmental
  problems
• Global warming too much CO2 in atmosphere
  increases average global temperature -gtflooding,
  climate change
• Ozone depletion CFCs destroy ozone layer -gt
  increase UV radiation exposure -gt increases
  cancer and crop damage

47
Warm-up Feb. 14th Entry 16

• INVASIVE or INTRODUCED SPECIES
• A species that is not native (an alien) to an
  ecosystem and whose introduction is likely to
  cause economic, environmental or human harm.
• EXPLAIN WHY introducing a species to an
  environment could be detrimental to an ecosystem.