L5 - Skill Across The UK Flashcards
1
Q
What two features of the landscape are contour lines used to show?
A
- Height ( each contour line is at a particular height)
- Slopes (contour lines close together show steep land & widely spaced contours mean gently sloping land)
2
Q
What are contour lines shown as on OS maps?
A
- thin orange or brown lines with numbers on them to show you the height above sea level of any point on the line
3
Q
What do contour lines join?
A
- they join points of equal height together
4
Q
What do smaller contour circles on OS maps show?
A
- smaller circles show a summit or basin but the inside of a contour circle is normally higher ground
5
Q
What do very few or no contour lines show?
A
- flat areas like river valleys and the sea
6
Q
When are contours on top of each other?
A
- they are only ever on top of one another if a vertical cave or cliff is present
7
Q
What does a ‘V’ or ‘U’ shape pointing downhill denote?
A
- the spur of a hill
8
Q
What do contours bunched together on either side of lower, more evenly spaced contours show?
A
- they show a valley or col ( lowest point of a ridge or saddle) between two areas of high ground
9
Q
What does the geology of England mainly consist of ?
A
- sedimentary rocks
- youngest rocks are found in the South East around London, progressing in age in a north westerly direction
- To the N and W of the Tees - Exe line, most of the rocks are older
- More resistant igneous and metamorphic rocks are found here
- There are more faults, where upland areas were lifted by tectonic activity
10
Q
What rocks are found to the S and E of the Tees - Exe line?
A
- Rocks are much younger
- There are weaker sedimentary rocks, which erode easily
- Limestone is also found here ( much younger and less resistant that Carboniferous limestone)
11
Q
What do upland areas of the UK consist of?
A
- they consist of resistant igneous, metamorphic and some sedimentary rocks
- low land areas of the UK generally consist of younger and less resistant sedimentary rocks
