GIS

Question 1

GIS stands for…

Answer 1

Geographical Information Systems

Question 2

What is it’s purpose?

Answer 2

• to display data on a map, helping us find patterns
• GIS data is organised in layers
• each layer has a theme
• GIS enables us to view only relevant layers, or all (turn on or off)

Question 3

Component parts of GIS

Answer 3

1. computer
2. Software
3. map
4. Data

Question 4

Raster and Vector

Answer 4

Raster data: pixels, used to display land

Vector: longitude + latitude, pinpoints data (eg roads, buildings, woods)

Question 5

Why is GIS better than traditional maps? 2 reasons

Answer 5

1. Layers mean you view data that is relevant to you, turning on and off layers
2. If a mistake is made it is easily corrected, and it can’t be lost or damaged in the same way as a physical map