symbols to know: co 2 = carbon dioxide o 2 = oxygen ch 4 = methane (natural gas) glucose = sugar...
TRANSCRIPT
Symbols to know:• CO2 = carbon dioxide• O2 = oxygen• CH4 = methane (natural gas)• Glucose = sugar
Koppen Climate Zones / Factors
Carbon Cycle / Ocean Acidification
Greenhouse Effect / Greenhouse Gases
Albedo / Sea Ice & Land Ice (glaciers)
Climate Change / Global Warming
Effects & Evidence of Global Warming
Paleoclimate / Ice Core Samples
read ALL of Chap. 21
CARBON CYCLEAtoms Molecules
Element Carbon Carbon Compounds
diamond (C)graphite (C)
• ashes• carbon dioxide (CO2)• calcium carbonate (CaCO3)• sugar / glucose (C6H12O6)• organic compounds (fats, protein, etc)• hydrocarbons (long chains of carbon & hydrogen)• fossil fuels (gas, oil, coal) are hydrocarbons
Fun Facts about Carbon: (you don’t have to know this)
Diamonds Graphite
CARBON CYCLEnotes
AtmosphereCO2 gas (<1% of all gases), delicate balance
Bill Nye, Cows & Methane video
Biosphere
Photosynthesis – plants (producers) take in CO2, make sugar (food), & give off O2
Respiration – living things (organisms) break down sugar (food) & give off CO2
organic decay – fungi & bacteria (decomposers) break down living remains & give off CO2
Geosphere
Lithosphere - largest depository of carbon (in rocks), volcanoes release CO2, deposition (into rock), weathering (into CO2 gas), carbon sediments buried over long periods can become
fossil fuels (coal, oil) burning them releases CO2
Hydrosphere
carbonic acid forms when CO2 of the atmosphere dissolves in water
pH scale: low number = 1 (acidic), 7 (neutral, H2O), high number = 14 (basic)
Ocean Acidification video
CARBON CYCLE
CARBON CYCLE (review)
Term Definition relation to the Carbon Cycle
1 Energy
2 Atmosphere
3 Photosynthesis
4 Respiration
5 Decomposers
6 Decay (Rotting)
7 Fossil Fuels
8 Deforestation
9 Combustion
10 Forest Fires
Ocean AcidificationYes, it dissolves coral reefs !
Sun’s energy passes through the windshield.
Energy (heat) is trapped inside the car & cannot pass back through the
windshield, causing the warm up.
Greenhouse Effect
Don’t write this, THINK about it !
You already know what it is:
Should I leave my dog or baby in the
car?
the Greenhouse Effect
The natural warming of Earth’s surface & lower
atmosphere due to trapped heat energy.
What are the “other gases” that cause the greenhouse effect?
Greenhouse Gases:
CO2 = carbon dioxide
THINK ABOUT IT
Hint: Venus has a very thick atmosphere of carbon dioxide (CO2)
Why is Venus the hottest planet in the solar system even though Mercury is a lot closer to the Sun?
Answer:
the extra CO2 causes the greenhouse effect to be stronger by trapping more heat
Venus has an average surface temperature hot enough to melt lead!
ALBEDOability of a surface to reflect light & heat energy back into the
atmosphere & spaceLow Medium High
anything darker / blackanything middle spectrum /
green or brownanything lighter color / white
rooftops, blacktops, darker soils
plants, trees ice, snow, glaciers, clouds
Urban Heat IslandUrban area that has a consistently higher temperature than the
surrounding rural areas due to the trapping of heat by buildings, concrete, & asphalt.
Ways to reduce it:
• Tree cover / canopy• Green rooftops / rooftop gardens
• “Rubberized” Asphalt• Permeable paving materials
Permeable pavers reduce the Urban Heat Island effect.
Ice Core DataIce Core Data
COCO22 Measurements Before 1958 - Antarctica Measurements Before 1958 - Antarctica
Possible Aim/s: a. How does global warming work?
b. What’s up with global warming?
c. How does carbon dioxide emission affect global warming?
Do Now: Write at least three questions
about the diagram/picture.
GLOBAL WARMING is the increase of the
Earth’s average surface temperature due to a build-up of greenhouse gases in the atmosphere.
CLIMATE CHANGE is a broader term that
refers to long-term changes in climate, including average temperature and precipitation.
Clarifications:
Compare Global Changes:
Acid Precipitation Ozone Depletion Global Warming
caused by caused by caused by
Nitrogen & Sulfur OxidesC.F.C.’s
(chlorofluorocarbons)CO2 , H2O, & Methane
Effects of Global WarmingIncreased Temperature
Habitat Damage and
Species Affected
Changes in Water Supply
Rising Sea Level
What’s the proof that global warming is taking place?
Portage Glacier
1914 2004
• Alaska
Colorado River
• Arizona
June 2002 Dec 2003
Burning of Fossil Fuels
Pollution from coal, natural gas, and oilPollution from coal, natural gas, and oilPollution from coal, natural gas, and oil
Global Warming:Global Warming:
Shifting GearsShifting Gears
What’s being done now to reduce our emissions?
Solar Power Wind Power Fuel-Efficiency
What can you do to help solve the What can you do to help solve the problem?problem?
Simple Things To Do
Turn off your computer or the TV when you’re not using it.
Take shorter showers. Heating water uses energy.
Keep rooms cool by closing the blinds, shades, or curtains.
Turn off the lights when you leave a room.
Use compact fluorescent bulbs.
Be Bulb Smart—Use CFLs
IncandescentCompact
Fluorescent
500 lbs. of coal
What’s the difference?
•1,430 lbs. CO2 pollution avoided •$30 saved
Simple Things To Do
Dress lightly when it’s hot instead of turning up
the air conditioning. Or use a fan.
Dress warmly when it’s cold instead of turning up the heat.
Offer to help your parents keep the air filters on
your AC and furnace clean.
Walk short distances instead of asking for a ride in the car.
Plant a tree. Recycle.
Phase 2- Activity
a. Designing and Constructing The Temperature Reader
b. Using the temperature reader in an experiment.
c. Fill out the worksheet as you perform the experiment.
Phase 3- Reflection, Feedback and RevisionUse the rubric to evaluate the temperature reader and laboratory sheet. Then switch with other groups and let them do the same. Revise the temperature reader and lab worksheet as needed.