When is a scatter graph the right way to show fieldwork results?

When testing whether two measured variables are related, such as channel width against distance downstream, because a line of best fit shows the direction and strength of the trend.

What is the advantage of proportional symbols or flow lines on a base map?

The symbol sits at the place the reading came from and its size shows the value, so the pattern and its location are shown together.

How is a land use survey recorded on a map?

Each building or site is given a category such as retail, residential, industrial or open space, and the categories are shaded onto a base map to show land use zones.

OCR GCSE Geography A J383

Ecosystems of the Planet

Topic overview Abiotic and biotic components, and how ecosystems interact The world’s biomes: where they are and what they are like Where the tropical rainforests are, and what they are like Where the coral reefs are, and what they are like Rainforest processes and nutrient cycling Two threatened ecosystems: a rainforest and a coral reef

Environmental Threats to Our Planet

Topic overview Climate change through the Quaternary, and since 1000AD The evidence for climate change Natural causes of climate change, and the enhanced greenhouse effect The consequences of climate change The world’s climatic regions and global atmospheric circulation How global circulation produces extreme weather Tropical storms: causes, distribution and frequency A drought caused by El Niño or La Niña

Fieldwork Skills

Topic overview Framing an enquiry question and choosing your methods Presenting, analysing and explaining fieldwork data Concluding, and evaluating the enquiry

Geographical Skills

Topic overview Constructing maps, and reading cross-sections and transects Coordinates, scale, distance and reading information from a map Gradient, contours, spot heights and GIS Choosing, constructing and presenting graphs and charts Reading and interpreting the main graph and chart types Number, area, scale and the relationships between units Proportion and ratio, and measures of central tendency and spread Percentages and percentiles, and designing data collection sheets Reading tables, and describing relationships in bivariate data Trend lines and lines of best fit Predicting from data, and spotting weak statistical presentation Drawing and justifying conclusions from data Interpreting images and written sources, and recognising bias Judging the limits of maps, graphs, statistics and images

Landscapes of the UK

Topic overview The UK’s upland, lowland and glaciated landscapes Geomorphic processes: weathering, mass movement, erosion, transport and deposition River landforms and how they form Coastal landforms and how they form Two UK landscape case studies: a river basin and a coastline

People of the Planet

Topic overview Defining and measuring development The global pattern of development: ACs, EDCs and LIDCs Why development is uneven, and the role of aid A developing or emerging country: its context and economy Rostow’s model and the country’s path of development Cities, megacities and world cities Why urban growth rates differ around the world Rapid urbanisation in poorer countries: causes and effects A major city in a poorer or emerging country

People of the UK

Topic overview The UK’s trade, media and cultural links with the world The UK’s geographical diversity and its inequalities Uneven development within the UK, and the effects of economic growth How the UK’s population structure has changed since 1900 Immigration into the UK in the twenty-first century Urban trends in the UK and their effects A major UK city: its people, challenges and ways of life

UK Environmental Challenges

Topic overview Air masses, the North Atlantic Drift and the UK’s extreme weather A UK flood event: causes, effects and responses How people use, modify and change UK ecosystems The UK’s renewable and non-renewable energy sources Changing UK energy supply and demand, and sustainable use Renewables in the UK, and the future of fossil fuels What shapes the UK’s energy choices

Fieldwork Skills

Presenting, analysing and explaining fieldwork data

3 things to know
Component 03

Overview

Processing raw readings, matching a presentation method to the data, scatter graphs, choropleth maps, proportional symbols and flow lines, land use maps, analysing results, the difference between describing and explaining, treating anomalies, and using a case study to explain results.

What you need to know

Answer each one before you reveal it.

Your recallNot started

Key term

What decides which presentation method suits a set of data?

Process

What does processing raw readings mean, and why is it done before presentation?

Key term

What is a choropleth map, and what is it good for?

Questions from this subtopic

Each one with the model answer underneath.

1
What does processing raw readings mean, and why is it done before presentation?
Model answer
Working out means, totals, ranges or percentages from the readings, so that sites with different numbers of measurements can be compared fairly.
2
What decides which presentation method suits a set of data?
Model answer
The kind of data it is: totals in separate categories suit a bar chart, change over time suits a line graph, proportions of a whole suit a pie chart, two measured variables suit a scatter graph, and anything tied to place suits a map.
3
When is a scatter graph the right way to show fieldwork results?
Model answer
When testing whether two measured variables are related, such as channel width against distance downstream, because a line of best fit shows the direction and strength of the trend.
4
What is a choropleth map, and what is it good for?
Model answer
A map with each area shaded according to its value, darker for higher, so regional differences such as deprivation or population density can be seen at a glance.
5
What is the advantage of proportional symbols or flow lines on a base map?
Model answer
The symbol sits at the place the reading came from and its size shows the value, so the pattern and its location are shown together.
6
How is a land use survey recorded on a map?
Model answer
Each building or site is given a category such as retail, residential, industrial or open space, and the categories are shaded onto a base map to show land use zones.

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Ecosystems of the Planet

Environmental Threats to Our Planet

Fieldwork Skills

Geographical Skills

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The trade winds drive warm surface water .

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AMore sunspots mean the Sun is giving out more energy.

BMore reaches the Earth and the climate warms.

CFewer sunspots mean a cooler climate.

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Obliquity means the angle of tilt of the Earth's axis.

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