Page 66 - Knowledge Organiser Yr7 24-25

Knowledge Base: Geography Marvellous Maps Year 7 | Autumn Term 2
3. How far, which direction, how high?
3.1
contour lines
Lines drawn on maps that join places of the same height.
3.2
scale
This is a ratio of the distance on a map to the real world distance. These help us to work out distances on maps.
3.3
spot height
The height above sea level in metres (A black dot with a number next to it on a map).
3.4
compass direction
North, south, east, west. Also NE, NW,SE,SW. Direction is given using compass point e.g. head in a northerly direction. X is to the West of Y.
1. Using maps
1.1 What is a map? Maps are pictures or digital representations of the Earth's surface.
1.2
Who is the Ordnance Survey?
They are Great Britain’s national mapping agency- their maps are relied on by government, business and individuals.
1.3
What is a map symbol?
Simple images, letters and abbreviations that show us human and physical features on a map.
1.4
key
Every map will have a key to show us what symbols mean and what scale the map is.
2. How do we locate places?
2.1
equator
The imaginary line that circles the earth at 0° latitude.
2.2
northern hemisphere
The half of the earth above the equator.
2.3
southern hemisphere
The half of the earth below the equator.
2.4
latitude
Imaginary horizontal lines that show how far north or south you are from the Equator (0°).
2.5
longitude
Imaginary vertical lines that show how far east or west a place is from the prime meridian (0°).
2.6
prime meridian
The line which runs through Greenwich in London. The Prime Meridian is 0° longitude.
2.7
continent
Large solid area of land made up of many countries (Africa, Asia, Europe, North America, South America, Antarctica, Oceania).
3.5 relief The height and shape of the land.
4. How do I use grid references?
4.1
grid reference
A position on a map that has been divided into squares. Similar to a coordinate (but without the comma!).
4.2
4 figure grid references
Used to pinpoint a location in a particular square. It is always given for the bottom left hand corner of the square (the South West corner). Read the horizontal line number first, then the vertical number.
4.3
6 figure grid references
These are used to pinpoint a location more accurately within a square. A six figure grid references splits a grid square up into ten sections along the bottom and the side.
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