Maps Flashcards
(10 cards)
Why do we use map symbols and not words?
It makes the maps clearer to read and there wouldn’t be enough space to write everything down
How to read a 4 figure grid reference?
Start at the bottom left corner and go straight up, that is your first two numbers. If you go straight right, that is your last two numbers.
Which way do eastings go?
up and down
Which way do northings go?
left and right
How to read 6 figure grid references?
First find the 4 figure grid reference, and leave a space after every 2 number, like this: 6145. Then, image there are ten squares along each side of the box, estimate/measure how far up this is and write the number in the first space. Then do the same but going across (right) the box and write the number in the last space.
What can you use instead of a ruler to measure distances on an OS grid?
The edge of another piece of paper/booklet.
Where is the scale on an OS map?
The bottom
What does it mean when contour lines are close together?
There is a steep slope
What do Contour lines show?
They show the steepness of a slop and the height of a hill.
What can be used instead of contour lines?
a dot with a number next to it (shows height) or triangulation pillars (blue triangle with a dot in the middle and the height marked next to it)