What is the National 5 Environmental Science assignment, and how does it gain its marks?
The National 5 Environmental Science assignment: an externally marked report on a candidate-chosen investigation with an underpinning environmental science focus, its structure and how it rewards the skills of scientific inquiry.
An SQA National 5 Environmental Science overview of the assignment, covering what the report is, the controlled conditions, the sections from aim to evaluation, how it uses experimental and research data, and how it rewards the same inquiry skills as the question paper.
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What this overview is asking
The SQA assesses one of the two course components through the assignment: an externally marked report on an investigation the candidate chooses, with an underpinning environmental science focus. You need to know what the assignment is, the conditions it is done under, its structure, and how it rewards the same inquiry skills examined in the question paper. Knowing how it is marked is the most direct way to secure these marks.
What the assignment is
It is set and marked by the SQA, so the report is the candidate's evidence of the inquiry skills.
The sections of the report
A complete report works through these sections, and each must do its job to gain its marks:
- Aim. A clear statement of what is being investigated.
- Raw data. First-hand results recorded in a table with headed columns and correct units.
- Processed results. Calculations such as a mean, percentage, percentage change or rate, shown with working.
- Presentation. A graph or chart where appropriate, with labelled axes and units.
- Analysis. Drawing out the trend or pattern in the results, and comparing first-hand data with the research data.
- Conclusion. A statement that answers the aim and is supported by the evidence.
- Evaluation. A judgement of the reliability or validity of the procedure, with a suggested improvement.
How it rewards inquiry skills
The assignment assesses the same skills of scientific inquiry as the question paper: planning and handling variables, selecting and presenting data, processing data, analysing, concluding and evaluating. The difference is that here the candidate generates and handles their own data, so it tests the skills in a fuller, applied way. Treat the mark scheme as a checklist: each section earns its marks by doing its specific job.
How the assignment fits the course assessment
The course award is graded A to D and combines the question paper and the assignment, both set and marked by the SQA. The question paper carries the larger share of the marks. The assignment contributes the remainder and is the part where practical and data-handling skills are assessed directly.
Examples in context
Example 1. Comparing first-hand and research data. A candidate measuring the pH of local rainwater compares their own readings with published average values. The comparison strengthens the analysis and shows the skill of handling data from more than one source, which the mark scheme rewards.
Example 2. A strong evaluation. After an investigation, a candidate notes that taking only three readings limited reliability and suggests repeating more times and averaging. This targeted evaluation, with a clear improvement, is exactly what the evaluation section is marked for.
Try this
Q1. Name the section of the report that judges how reliable or valid the procedure was. [1 mark]
- Cue. The evaluation.
Q2. Explain why the conclusion must link back to the aim. [2 marks]
- Cue. The aim states what was being investigated, so the conclusion must answer that question and be supported by the evidence to gain its marks.
Exam-style practice questions
Practice questions written in the style of SQA exam questions on this dot point, with worked answer explainers. The year tag is the paper they imitate, not the source.
SQA N5 assignment guide4 marksOutline the main sections a National 5 Environmental Science assignment report should contain, from the aim through to the evaluation, and state what each section needs to gain its marks.Show worked answer →
A strong answer names the sections in order and says what each needs.
The report should contain: an aim that clearly states what is being investigated; raw data recorded in a correctly headed table with units; processed results, such as averages, a percentage or a calculation, shown with working; a graph or chart where appropriate, with labelled axes and units; an analysis that draws out the trend or pattern in the results; a conclusion that answers the aim and is supported by the evidence; and an evaluation that judges the reliability or validity of the procedure and suggests an improvement.
Marks are gained for valid raw data, correct processing and presentation, an analysis, a conclusion that links back to the aim, and a sensible evaluation. A conclusion with no supporting evidence, or a table with no units, would not gain full marks.
SQA N5 assignment guide3 marksThe assignment is done under controlled conditions and uses both experimental data and research data. Explain what controlled conditions means and why two sources of data are used.Show worked answer →
A 3-mark answer needs the meaning of controlled conditions and the reason for two data sources.
Controlled conditions means the report-writing stage is done under supervision, within set time and rules, so the work is the candidate's own and assessment is fair across all candidates.
Two data sources are used: experimental (first-hand) data gathered by the candidate from their own practical or fieldwork, and research data found from reliable internet or literature sources. Using both lets the candidate compare their own results with established information, which strengthens the analysis and conclusion and demonstrates the skill of selecting and handling information from more than one source.
Markers reward the meaning of controlled conditions and a clear reason for combining first-hand and researched data.
Related dot points
- Skills of scientific inquiry and fieldwork: sampling techniques (quadrats and transects), measuring abiotic factors, identifying variables, presenting and processing data, drawing conclusions, and evaluating reliability and validity.
An SQA National 5 Environmental Science answer on fieldwork and the skills of scientific inquiry, covering sampling techniques such as quadrats and transects, measuring abiotic factors, identifying variables and controls, presenting and processing data, drawing valid conclusions, and evaluating reliability and validity.
- Ecosystems, habitats and niches; biotic and abiotic factors; food chains, food webs and energy flow through trophic levels; and the interdependence of organisms within a community.
An SQA National 5 Environmental Science answer on ecosystems and interdependence, covering habitats and niches, biotic and abiotic factors, food chains and food webs, the flow of energy through trophic levels, and how organisms depend on one another in a community.
- The water cycle and its processes; sources of fresh water; water as a resource; and the treatment of water to make it safe to drink and to deal with waste water.
An SQA National 5 Environmental Science answer on the water cycle and water resources, covering evaporation, condensation, precipitation and other processes, sources of fresh water, the treatment of drinking water and waste water, and threats to water quality.
- Sustainable development and the ecological footprint; sustainable management of resources; balancing economic, social and environmental needs; and making and evaluating decisions about environmental issues.
An SQA National 5 Environmental Science answer on sustainable development and environmental management, covering the meaning of sustainable development, the ecological footprint, sustainable management of resources, balancing economic, social and environmental needs, and how to evaluate decisions about environmental issues.
- Biodiversity defined at the species, genetic and ecosystem levels; the importance of biodiversity for ecosystem services and human wellbeing; biodiversity hotspots; and how biodiversity is measured and indicated.
An SQA National 5 Environmental Science answer on biodiversity, covering the species, genetic and ecosystem levels of diversity, why biodiversity matters for ecosystem services and people, what a biodiversity hotspot is, and how biodiversity is measured using indicator species and sampling.