1. Chemical Processes Ocean acidification

3. Monday 29 April An introduction to ocean acidification
SLO: Identify a chemistry issue (ocean acidification) and identify why it is an issue.
Achievement standard introduction/keywords
Videos: The global challenge of ocean acidification (21 mins)
The science of ocean acidification (4 mins)
Review the carbon cycle using a diagram. Identify key features – how do you know they are the key features? Add labels based on what organisms fix carbon dioxide and which processes release it.

4. Ocean acidification introduction
Internal
3 credits
Task: Write a report that demonstrates an understanding of the processes involved in the observed decrease in ocean pH as a result of anthropogenic carbon dioxide emissions, and the consequences of the chemical processes for the environment or people involved with these processes. They will evaluate the effect of the chemical processes involved in ocean acidification.

7. Tuesday 30 April An introduction to the Carbon Cycle
SLO: Describe, or give an account, of a chemical process.
Keywords: anthropogenic, ocean acidification, coral, coral bleaching,photosynthesis, phytoplankton, algae, atmosphere
Photosynthesis – how does it work? Diagram and notes.
The Carbon cycle – what is it, it’s role in ocean acidification, why it’s important that balance is ensured, human activity.
Video: The Carbon Cycle Take notes.
3-level reading guide (reading and questions).
‘Climate change – the geological evidence’. In pairs.
Homework: review carbon cycle, photosynthesis and key words.

9. Photosynthesis
Photosynthesis takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere.
During photosynthesis, light energy transfers electrons from water (H2O) to carbon dioxide (CO2), which produces carbohydrates. In this transfer, the CO2 is "reduced," or receives electrons, and the water becomes "oxidized," or loses electrons. Ultimately, oxygen is produced along with carbohydrates.
Photosynthesis functions as a counterbalance to respiration; it takes in the carbon dioxide produced by all breathing organisms and reintroduces oxygen into the atmosphere.

10. The Carbon Cycle

12. Wednesday 1 May pH basics
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
What exactly is pH? – notes and explanation.
Videos describing/explaining various aspects of pH. pH basics
A little more advanced
A bit more…
Check your understanding (if time).

13. Thursday 2 May More on pH
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Researching pH: Use google/you tube to put together an information sheet on pH – you should include what it is, how it’s measured, examples, any relevant equations. You should also use videos and readings from the web.
We will look at pH and the ocean on Monday.

14. Monday 6 May pH and the ocean
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Re-cap pH slides from ppt “The relevance of equations when looking at ocean acidification”
Finish pH videos.
What is the difference between a strong and a weak acid? Videos and activities on video.
Working through reading and questions.
The ocean pH

15. Tuesday 7 May pH and the ocean (continued)
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Finish ppt from Monday
What is the difference between a strong and a weak acid? Videos and activities on video.
Working through reading and questions.
The ocean pH

16. Thursday 9 May The Great Dying
SLO: Evaluate the impact of a chemical process on the environment, or on human activity.
Overview of what’s happening in our ocean today
The threat of ocean acidification Rod Dunbar
The Great Dying – looking at the most extreme mass extinction the planet has ever seen and its’ causes – video and reading.
Complete reading on the Great Dying – highlight main points

17. The Keeling Curve https://www. youtube. com/watch

18. Monday 13 May Carbon dioxide and seawater
SLO: Understand the equations involved when carbon dioxide dissolves in seawater
Carbon dioxide and seawater ppt/Notes
Add equation to list

19. Tuesday 14 May Miss Voss away
Own revision of what we’ve done so far

20. Wednesday 15 May Le Chatelier’s Principle
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Finish Carbon dioxide and seawater ppt
The relevance of equations when looking at ocean acidification/Le Chatelier’s principle – powerpoint, notes and video.
Homework: go over keywords and create a chart for terms, equations etc looked at so far.

21. Thursday 16 May More on Le Chatelier’s Principle
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Continue working through Le Chatelier’s principle.
Le Chatlier's principle

22. Monday 20 May Re-cap of equations/3-level reading
Notes and further explanations of main equations so far
3–level reading guide – read handout and fill out reading guide as you go

23. Tuesday 21 May More Chemistry basics
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Complete notes on equations.
Complete 3 level guide reading on ocean acidification.

24. Wednesday 22 May
Own study

25. Thursday 23 May Coral bleaching
SLO: Make and explain links between chemical processes and their consequences – carbon dioxide in seawater.
Ppt. and worksheet on coral bleaching.
Videos on what is coral bleaching and latest news items.

26. Monday 27 May Ocean acidification equations and how it affects marine organisms
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Re-cap equations from Monday/Tuesday – ppt ‘The relevance of equations’ slides 19-36
The decrease in carbonate – what does this affect?

27. Tuesday 28 May Reviewing ocean acidification diagrams
SLO: Make and explain links between chemical processes and their consequences.
Making sense of ocean acidification diagrams – analysise and write synopsis for each of the diagrams. Choose another diagram from google, analyse/write synopsis – present to class.

28. Thursday 30 May Re-cap on pH
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations (pH)

29. Start working on summary so far – table
Start working on summary so far – table. Headings: Facts and figures around ocean acidification, Causes of ocean acidification, Equations explaining ocean acidification (should have already started), How ocean acidification affects marine organisms.

30. Tuesday 7 May pH experiment
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
pH experiment and write-up

31. Wednesday 8 May
SLO: Integrate chemistry vocabulary, symbols, conventions and equations into explanations.
Complete results table and conclusion for pH experiment.
Complete reading and questions on Strong/weak acids.

32. Wednesday 20 May Carbon Dioxide and Seawater 1
SLO: Make and explain links between chemical processes and their consequences – carbon dioxide in seawater.
Finish ocean acidification diagrams (synopsis).
Work through the Carbon Dioxide and Seawater ppt and handout, finishing questions and table.
Homework: add to table new information, review existing information.

33. Thursday 21 May Carbon dioxide in seawater 2
SLO: Make and explain links between chemical processes and their consequences – carbon dioxide in seawater.
Powerpoint – what happens to carbon dioxide when temperatures increase and how does this affect currents?
Using the powerpoint, answer the 4 questions on carbon dioxide in seawater.
Video: Ocean currents

34. Wednesday 27 May Acidification experiment and CO2 Solubility and begin formative letter
SLO: Make and explain links between chemical processes and their consequences.
Set-up acidification experiment – copy method, carry out method in groups.
CO2 Solubility.
Writing letter – begin formative (see next slide).

35. Thursday 28 May Ocean acidification letters
SLO: Make and explain links between chemical processes and their consequences – overview of what has been learnt so far.
You are a scientist working for the Trump organisation. You have spent your life researching ocean acidification. Trump is saying it’s a hoax and has issued a no-media policy. You need to let the world know what’s going on. You are to write a letter to a journalist outlining the causes and effects of ocean acidification. This needs to be a persuasive report, but must include facts. the reading, what you have learnt in class plus diagrams, references from videos etc

36. Monday 3 June Ocean acidification letters cont.
SLO: Make and explain links between chemical processes and their consequences – overview of what has been learnt so far.
Continue working on letters.

37. Tuesday 4 June Ocean acidification letters
SLO: Make and explain links between chemical processes and their consequences – overview of what has been learnt so far.
Write-up Shell experiment.
Finish letters and get them peer reviewed. Hand back with suggestions.

38. Wednesday 5 June Group work – expert groups
Formative letters handed back.
This lesson = work in expert groups
Friday = report back to base groups
Work in groups to carry out research and develop a poster summary for:
• Effects of increased ocean acidity on shellfish
• Effects of ocean acidification on marine food webs
• Flow-on effects of ocean acidification for humans
• Effects of increased ocean acidity on climate change.

39. Thursday 6 June Group work – base groups
SLO: Make and explain links between chemical processes and their consequences .
This lesson = Finish expert group summaries.
= report back to base groups.
Ensure you have the summaries for all 4 effects by the end of the lesson.
Work in groups to carry out research and develop a poster summary for:
• Effects of increased ocean acidity on shellfish
• Effects of ocean acidification on marine food webs
• Flow-on effects of ocean acidification for humans
• Effects of increased ocean acidity on climate change.

40. Monday 10 June Impacts of chemical processes
SLO: Elaborate on impacts of chemical processes to clearly explain the links between the process(es) and their impact(s).
Recap chemical processes – work through notes off the board to fill in table:
Homework: Start preparing a clearfile folder with resources to bring into class for the summative assessment.
EQUATION
WHAT IT MEANS
CONSEQUENCE

41. Tuesday 7 June Solutions
SLO: Elaborate on impacts of chemical processes to clearly explain the links between the process(es) and their impact(s).
The short-lived bright side.
Solutions.

42. Wednesday 8 June – Tuesday 14 June Ocean Acidification Summative