1. L1 – The greenhouse effect
PhET simulation
Researching evidence, causes, effects of climate change

2. PhET Greenhouse Simulation
Google PhET Greenhouse Simulation
Download and run/install (requires Java)
You can share computers
Download worksheet from class page – follow prompts and complete worksheet

3. Greenhouse effect simulation
Complete the simulation (PhET Greenhouse effect) using the online lab worksheet
When you are finished visit and research ‘What is climate change?’ and take notes on one of…
Evidence
Causes
Effects

4. L2 – Greenhouse effect and global warming
Introduction to course
Review of greenhouse effect and global warming
Introduction to greenhouse effect experiments

5. Earth Science – Key Questions
What are the global processes and cycles that influence the planet and its climate?
What is the enhanced greenhouse effect and how does it cause climate change?
What is the impact of global warming?
What should be done to reduce the enhanced greenhouse effect?

6. Earth Science Plan – How are humans affecting essential global systems?
Lesson 1 – The greenhouse effect
Lesson 1 – Big questions about earth and space science, how do we form scientific opinions?
Lesson 3 – Experiments - The greenhouse effect and thermal expansion of oceans (assessment)
Lesson 4 – The enhanced greenhouse effect and human impacts on the carbon cycle
Lesson 5 – Other impacts on global temperatures
Lesson 6 – ‘Whose responsibility is it to reduce carbon emissions?’ – Role play introduction
Lesson 7 – ‘Whose responsibility is it to reduce carbon emissions?’ – Role play / debate
Lesson 8 - Taking action to reduce carbon emissions

7. The greenhouse effect What is is? How does it work?
Why is it important?

8. Revision: Electromagnetic radiation
Visible light occupies only one-thousandth of a percent of the spectrum

9. Radiation reaching earth
Solar radiation from the sun consists of short wave radiation:
Ultra violet radiation – burns us
Visible light – we can see
Infrared radiation – we feel as heat

10. Radiation leaving the surface of the earth
Short wave solar radiation is absorbed by the land and sea
The land and sea then radiate long wave radiation (infrared radiation) back to the atmosphere

11. Earth’s greenhouse effect
(Visible light)
Greenhouse gases in the earth’s atmosphere acts like the glass of a glasshouse.
They trap heat and warm the earth, which makes life possible.
Without the greenhouse effect the earth would be frozen.
(Infrared radiation)

12. Short wave radiation
Long wave radiation

13. Greenhouse effect and global warming – due next Tuesday 29th
Read pages of your text book (Section 7.4 – Global warming)
Answer Qs 1, 2, 3, 4, 7, 8 (p232)
Greenhouse effect experiments: variables, hypothesis and title and column headings on tables (for both experiment 1 and 2)

14. Greenhouse effect experiments
Select and download level 1 or 2 document from STL link (review method)
For both experiments:
Complete variables
Complete hypothesis
Add column headings and titles for graphs
(Due next Tuesday 22nd)

15. Atmospheric Gases
Gas
Dry Volume
nitrogen (N2)
78.08%
oxygen (O2)
20.95%
argon (Ar)
0.93%
carbon dioxide (CO2)
0.038%
neon (Ne)
0.002%
helium (He)
0.0005%
methane (CH4)
0.0002%
hydrogen (H2) %
nitrous oxide (N2O) %
water vapour (H2O)
1% - 4%
The atmosphere is made up of a mixture of over 16 gases, the main ones and their proportion are in the table.
Earth’s naturally occurring green house gases are carbon dioxide and water vapour.

16. Atmospheric Gases

17. L2 – The greenhouse effect
Connect – Extend – Challenge review
Review on electromagnetic radiation
Greenhouse effect experiments
Earth as a System
Key questions:
Why is the greenhouse effect an essential process for life on earth?
What are the different types of electromagnetic radiation?
What is the science that explains the greenhouse effect?

18. L3 – The greenhouse effect
Earth as a system
Data for greenhouse effect experiment
Greenhouse effect simulation
Time to work on prac report

19. Earth as a System

20. L4 – Human impacts on the greenhouse effect
Why is the greenhouse effect important for life on earth?
What is causing climate change?
What are the consequences of climate change?

21. 2015’s record heat: It will soon be ‘normal’

22. Connecting key phrases about climate change
Read article: 2015’s record heat: It will soon be ‘normal’ from class page, taking note of key phrases
Create a poster using these key phrases. Show how the phrases are connected and add annotations or diagrams:
Atmospheric carbon levels
Climate change
Global warming
Burning of fossil fuels
Enhanced greenhouse effect
Methane emissions from livestock
(Leave room for further information to be added about each phrase)

24. Greenhouse gases Naturally occurring: water vapour, carbon dioxide
Human sources:

25. Consequences of climate change
Refer to the two NASA websites on class page
Add to your poster:
What is some of the evidence for climate change?
What evidence is there that the current global warming is linked to human activities?
What are the effect of climate change?
Also, do research to outline how the following affect atmospheric greenhouse gas concentrations:
Burning of fossil fuels
Deforestation

26. L5 – What else affects global temperatures?
Prac report tips
Carbon cycle game - human impacts on the carbon cycle
Other impacts on global temperatures
(Greenhouse review - exam style questions)
Next week: ‘Whose responsibility is it to reduce carbon emissions?’ – role play

27. Carbon flows in ecosystems
How does carbon and energy enter into a food web?
Photosynthesis in producers (plants):
Carbon from the atmosphere is stored in plants as glucose
Glucose is a carbon based molecule and is used for energy for the organism and forms biomass
Producers are eaten by consumers and transfer some of the carbon and energy to them
Sun

28. How are humans impacting on photosynthesis?
Deforestation
Less trees means less photosynthesis
Reduces rate of carbon removal from atmosphere
Higher atmospheric carbon dioxide levels enhances the greenhouse effect
(Also releases stored carbon back to atmosphere if trees are burned)

29. Carbon flows in ecosystems
How does carbon leave a food web and return to the atmosphere?
Cellular respiration in all living organisms
Energy in the form of ATP is used for cellular functions
Carbon dioxide is released into the atmosphere

30. How are humans releasing large amounts of CO2 into the atmosphere?
‘Fossilisation’ stored carbon underground as fossil fuels (oil, coal and gas) over billions of years.
Human are digging up fossil fuels.
We then ‘combust (burn) fossil fuels’ to access the stored energy
Carbon dioxide is released to the atmosphere in the process

31. Greenhouse effect summary
Describe how the greenhouse effect works.
Explain why it is important to life on earth.
Describe how humans are increasing atmospheric carbon dioxide levels.
Describe how deforestation affects atmospheric carbon dioxide levels.
Describe one of the consequences of climate change.

32. Enhanced greenhouse effect

33. Global warming graphs