Key term
OCR GCSE Geography A J383
Ecosystems of the Planet
Topic overviewAbiotic and biotic components, and how ecosystems interactThe world’s biomes: where they are and what they are likeWhere the tropical rainforests are, and what they are likeWhere the coral reefs are, and what they are likeRainforest processes and nutrient cyclingTwo threatened ecosystems: a rainforest and a coral reef
Environmental Threats to Our Planet
Topic overviewClimate change through the Quaternary, and since 1000ADThe evidence for climate changeNatural causes of climate change, and the enhanced greenhouse effectThe consequences of climate changeThe world’s climatic regions and global atmospheric circulationHow global circulation produces extreme weatherTropical storms: causes, distribution and frequencyA drought caused by El Niño or La Niña
Fieldwork Skills
Geographical Skills
Topic overviewConstructing maps, and reading cross-sections and transectsCoordinates, scale, distance and reading information from a mapGradient, contours, spot heights and GISChoosing, constructing and presenting graphs and chartsReading and interpreting the main graph and chart typesNumber, area, scale and the relationships between unitsProportion and ratio, and measures of central tendency and spreadPercentages and percentiles, and designing data collection sheetsReading tables, and describing relationships in bivariate dataTrend lines and lines of best fitPredicting from data, and spotting weak statistical presentationDrawing and justifying conclusions from dataInterpreting images and written sources, and recognising biasJudging the limits of maps, graphs, statistics and images
Landscapes of the UK
People of the Planet
Topic overviewDefining and measuring developmentThe global pattern of development: ACs, EDCs and LIDCsWhy development is uneven, and the role of aidA developing or emerging country: its context and economyRostow’s model and the country’s path of developmentCities, megacities and world citiesWhy urban growth rates differ around the worldRapid urbanisation in poorer countries: causes and effectsA major city in a poorer or emerging country
People of the UK
Topic overviewThe UK’s trade, media and cultural links with the worldThe UK’s geographical diversity and its inequalitiesUneven development within the UK, and the effects of economic growthHow the UK’s population structure has changed since 1900Immigration into the UK in the twenty-first centuryUrban trends in the UK and their effectsA major UK city: its people, challenges and ways of life
UK Environmental Challenges
Topic overviewAir masses, the North Atlantic Drift and the UK’s extreme weatherA UK flood event: causes, effects and responsesHow people use, modify and change UK ecosystemsThe UK’s renewable and non-renewable energy sourcesChanging UK energy supply and demand, and sustainable useRenewables in the UK, and the future of fossil fuelsWhat shapes the UK’s energy choices
Fieldwork Skills
Concluding, and evaluating the enquiry
- 3 things to know
- Component 03
Overview
What a conclusion must do, evidence against assertion, judging a hypothesis and results that only partly match, transcripts, not over-claiming, using secondary data, evaluating an enquiry, reliability and accuracy, small samples, questionnaire bias, single-day river readings, human error and subjective environmental quality scores.
What you need to know
Answer each one before you reveal it.
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Key term
What is the job of a conclusion in an investigation?
Key term
What makes a conclusion evidenced rather than asserted?
Questions from this subtopic
Each one with the model answer underneath.
- 1
What is the job of a conclusion in an investigation?
Model answer
To answer the original question directly, using the evidence collected rather than what was expected beforehand.
- 2
What makes a conclusion evidenced rather than asserted?
Model answer
Every claim in it points back to a particular figure, graph or observation from the data collected.
- 3
How should a hypothesis be dealt with once the results are in?
Model answer
State whether the evidence supports it, partly supports it or rejects it, and quote the values that decide the verdict.
- 4
What should be written when the results only partly match the prediction?
Model answer
Say which part is supported and which is not, with the figures for each, instead of forcing the whole investigation into one verdict.
- 5
What is a transcript, and what can be taken from one?
Model answer
A written record of what an interviewee actually said; opinions that recur across several transcripts can be grouped to show why a pattern exists.
- 6
Why must a conclusion not claim more than the data can carry?
Model answer
Because the readings came from one place on one day, so a statement about everywhere or always is not supported by them.
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