IA3 Chemistry

Islamic College of Brisbane (Karawatha)

Chemistry 
IA3
  Student name
Student number 
Teacher 
Issued11/06/2021
Due date02/08/2021

Marking summary

Research and planning                                                                          6

Analysis and interpretation                                                                    6

Conclusion and evaluation                                                                    6

Communication                                                                                       2

Overall                                                                                                      20

Conditions

Technique Unit Topic/s

Research investigation

Unit 4: Structure, synthesis and design

Topic 1: Properties and structure of organic materials Topic 2: Chemical synthesis and design

Duration Mode / length

10 hours of class time

Written (e.g. scientific essay): 1500–2000 words

Individual / group              Individual

Context

Select a claim from the following list.

  • Hydrogen will replace fossil fuels in the future.
  • The production of ethanol as a fuel is an example of green chemistry in action.
  • Molecular manufacturing techniques will provide vital materials and products at greatly reduced cost and environmental impact.
  • Biodiesel is superior to bioethanol as a transport fuel.
  • The use of fuels such as biodiesel and ethanol reduces global warming.
  • Synthetic detergents are superior to soap.

Task

Gather secondary evidence related to a research question in order to evaluate the claim. Develop your research question based on a number of possible claims provided by your teacher.Obtain evidence by researching scientifically credible sources, such as scientific journals, books by well-credentialed scientists, and websites of governments, universities, independent research bodies or science and technology manufacturers.

You must adhere to research conventions.

To complete this task, you must:

  • select a claim to be evaluated
  • identify the relevant scientific concepts associated with the claim
  • pose a research question addressing an aspect of the claim
  • conduct research to gather scientific evidence that may be used to address the research question and subsequently evaluate the claim
  • analyse the data to identify sufficient and relevant evidence
  • identify the trends, patterns or relationships in the evidence
  • analyse the evidence to identify limitations
  • interpret the evidence to construct justified scientific arguments
  • interpret the evidence to form a justified conclusion to the research question
  • discuss the quality of the evidence
  • evaluate the claim by extrapolating the findings of the research question to the claim
  • suggest improvements and extensions to the investigation
  • communicate findings in an appropriate scientific genre, i.e. empirical essay.

Checkpoints

Term 3 week 2: Select claim and develop research question. Term 3 week 3: Identify sources and conduct research.

Term 3 week 4: Analyse and evaluate evidence. Term 3 week 5: Submit draft.

Term 3 week 6: Submit final response.

Authentication strategies

  • You will be provided class time for task completion.
  • Your teacher will collect and annotate a draft.
  • You must acknowledge all sources.
  • You will use plagiarism-detection software to submit your response.
  • Your teacher will conduct interviews or consultations as you develop the response.
  • Your teacher will collect copies of your response and monitor at key junctures.

Scaffolding

The response must be presented using an appropriate scientific genre (i.e. empirical essay) and contain:

  • a claim
  • a research question
  • a rationale for the investigation
  • justified scientific arguments using evidence
  • a conclusion to the research question based on the interpretation of the evidence
  • evaluation of the claim and suggestions of improvements and extensions to the investigation
  • a reference list.

An example of how one of the claims could be developed into a research question Claim: Plastics are bad for the environment.

Research question: What effect do catalysts have on the chemical recycling of polyethylene terephthalate (PET) by glycolysis?

Developing the research question:

  1. Identify the key (important) terms in the claim.a. ‘plastics’, ‘bad’, ‘environment’.
  2. Propose refining questions that need to be addressed to refine key terms and narrow the focus of the claim.
    1. Which plastic will I investigate?
    1. Why did I choose this plastic?
    1. What do I mean by ‘bad’ for the environment in chemical terms?
  3. Provide an example of how one of the claims could be developed into a research question. Conduct research to gather information to address the refining questions.
    1. The plastic that will be investigated is PET.
    1. PET’s structural and chemical properties make it a high-demand plastic that is not biodegradable. Therefore, it is an environment problem if not recycled.
    1. PET can be recycled by a chemical process called glycolysis, which requires a catalyst.d. Products from chemically recycling PET can be used as feedstock (raw materials) for other products.
  4. Draft the research question to address the claim.
    1. How does chemically recycling PET help the environment?
  5. Refine and focus the research question.
    1. How does chemically recycling PET by glycolysis help the environment?
    1. What factors affect the chemical recycling of PET by glycolysis?
  6. Present the research question to the teacher for approval.
    1. What effect do catalysts have on the chemical recycling of polyethylene terephthalate (PET) by glycolysis?

Note: You cannot use this sample research question for your investigation.

Instrument-specific marking guide (IA3): Research investigation (20%)

Criterion: Research and planning

Assessment objectives

2.    apply understanding of the properties and structure of organic materials or chemical synthesis and design to develop research questions

5.    investigate phenomena associated with the properties and structure of organic materials or chemical synthesis and design through research

The student work has the following characteristics:Marks
informed application of understanding of the properties and structure of organic materials or chemical synthesis and design demonstrated by a considered rationale identifying clear development of the research question from the claim effective and efficient investigation of phenomena associated with the properties and structure of organic materials or chemical synthesis and design demonstrated bya specific and relevant research questionselection of sufficient and relevant sources.    5–6
adequate application of understanding of the properties and structure of organic materials or chemical synthesis and design demonstrated by a reasonable rationale that links the research question and the claim effective investigation of phenomena associated with the properties and structure of organic materials or chemical synthesis and design demonstrated bya relevant research questionselection of relevant sources.    3–4
rudimentary application of understanding of the properties and structure of organic materials or chemical synthesis and design demonstrated by a vague or irrelevant rationale for the investigation ineffective investigation of phenomena associated with the properties and structure of organic materials or chemical synthesis and design demonstrated byan inappropriate research questionselection of insufficient and irrelevant sources.    1–2
does not satisfy any of the descriptors above.0

Criterion: Analysis and interpretation

Assessment objectives

  • analyse research evidence about the properties and structure of organic materials or chemical synthesis and design
  • interpret research evidence about the properties and structure of organic materials or chemical synthesis and design
The student work has the following characteristics:Marks
systematic and effective analysis of qualitative data and/or quantitative data within the sources about the properties and structure of organic materials or chemical synthesis and design demonstrated bythe identification of sufficient and relevant evidencethorough identification of relevant trends , patterns or relationshipsthorough and appropriate identification of limitations of evidence insightful interpretation of research evidence about the properties and structure of organic materials or chemical synthesis and design demonstrated by justified scientific argument /s.      5–6
effective analysis of qualitative data and/or quantitative data within the sources about the properties and structure of organic materials or chemical synthesis and design demonstrated bythe identification of relevant evidenceidentification of obvious trends , patterns or relationshipsbasic identification of limitations of evidence adequate interpretation of research evidence about the properties and structure of organic materials or chemical synthesis and design demonstrated by  reasonable scientific argument /s.      3–4
rudimentary analysis of qualitative data and/or quantitative data within the sources about the properties and structure of organic materials or chemical synthesis and design demonstrated bythe identification of insufficient and irrelevant evidenceidentification of incorrect or irrelevant trends , patterns or relationshipsincorrect or insufficient identification of limitations of evidence invalid interpretation of research evidence about the properties and structure of organic materials or chemical synthesis and design demonstrated by inappropriate or irrelevant argument /s.      1–2
does not satisfy any of the descriptors above.0

Criterion: Conclusion and evaluation

Assessment objectives

4.    interpret research evidence about the properties and structure of organic materials or chemical synthesis and design

  • evaluate research processes , claims and conclusions about the properties and structure of organic materials or chemical synthesis and design
The student work has the following characteristics:Marks
insightful interpretation of research evidence about the properties and structure of organic materials or chemical synthesis and design demonstrated by justified conclusion /s linked to the research question critical evaluation of the research processes , claims and conclusions about the properties and structure of organic materials or chemical synthesis and design demonstrated byinsightful discussion of the quality of evidenceextrapolation of credible findings of the research to the claimsuggested improvements and extensions to the investigation that are considered and relevant to the claim.      5–6
adequate interpretation of research evidence about the properties and structure of organic materials or chemical synthesis and design demonstrated by reasonable conclusion /s relevant to the research question basic evaluation of the research processes , claims and conclusions about the properties and structure of organic materials or chemical synthesis and design demonstrated byreasonable description of the quality of evidenceapplication of relevant findings of the research to the claimsuggested improvements and extensions to the investigation that are relevant to the claim.      3–4
invalid interpretation of research evidence about the properties and structure of organic materials or chemical synthesis and design demonstrated by inappropriate or irrelevant conclusion /s superficial evaluation of the research processes , claims and conclusions about the properties and structure of organic materials or chemical synthesis and design demonstrated bycursory or simplistic statements about the quality of evidenceapplication of insufficient or inappropriate findings of the research to the claimineffective or irrelevant suggestions.      1–2
does not satisfy any of the descriptors above.0

Criterion: Communication

Assessment objectives

  • communicate understandings and research findings , arguments and conclusions about the properties and structure of organic materials or chemical synthesis and design.
The student work has the following characteristics:Marks
effective communication of understandings and research findings , arguments and conclusions about the properties and structure of organic materials or chemical synthesis and design demonstrated byfluent and concise use of scientific language and representationsappropriate use of genre conventionsacknowledgment of sources of information through appropriate use of referencing conventions .    2
adequate communication of understandings and research findings , arguments and conclusions about the properties and structure of organic materials or chemical synthesis and design demonstrated bycompetent use of scientific language and representationsuse of basic genre conventionsuse of basic referencing conventions .    1
does not satisfy any of the descriptors above.0
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