Review

What are the 3 Types of Maps

1. Topographic

2. General Purpose

3. Thematic

What Type of Map is This?

Thematic

What Type of Map is This?

Topographic

What Type of Map is This?

General Purpose Map

Scales allow us to accurately represent really big areas in a small amount of space

Scales

Scale

• Scale shows the relationship between the distance on a map and the actual distance on the Earth’s surface– Direct Statement Scale uses words to describe what a

distance on a map represents in the real world• 1 cm = 10 kilometres

– Linear Scale uses a special ruler on a map to show what a distance on a map represents in the real world

• 0 km 400 km– Representative Fraction Scale is a ratio where one unit

on a map represents a specific number of the same unit in the real world

• 1:50 000 (1 cm on the map represents 50 000 cm in the real world)

Scale

Area Detail Example

Large Scale Maps

Small A lot(streets, schools, railways, …)

Topographic maps, road maps, city bus maps

Small Scale Maps

Large A little(borders, lakes, large rivers, …)

Globes, world maps, atlases

Scale – Mapping Our Location

• World Map

Scale – Mapping Our Location

• Canada Map

Scale – Mapping Our Location

• Ontario Map

Scale – Mapping Our Location

• South Central Ontario

Scale – Mapping Our Location

Guess that Scale

Dawson City -Yukon

Large Scale

Quebec

Small Scale

The World

Canadian Cheese

Toronto

Huntsville

The Milky Way

Converting Scales

Converting Scales is EASY!

In geography and map scale we often deal with cm and km so we must memorize only one conversion factor.

1km= 100 000cm

Converting Scales

Converting ScalesThese conversions are useful when it comes to understanding the scale bar on a map.

1 : 100 000

What the RATIO scale above is telling us is that for every one centimeter you travel on the map, you have travelled one hundred thousand centimeters in the REAL WORLD

So it can be read as 1cm = 100 000 cm

Or using conversions 1cm = 1 km