Semester 2 LET 1-2
4/26/14 – 4/27/14
Maps
Geography (Exploring the World) - Continents
Asia

Asia is the largest continent in both size and population.

Asia has 49 independent countries.

Asia has the highest and lowest places in elevation.
o Mount Everest – 29,028 feet high.
o Dead Sea – 1310 feet below sea level.
Africa

Africa is the second largest continent in both size and population.

Africa has the world’s largest desert - the Sahara desert.

Africa has the longest river in the world – the Nile River.
o The river flows more than 4000 miles.
North America

North America is third largest in size, fourth in population.

It is roughly shaped in a triangle.

Narrowest point in North America is in Panama – 30 miles across.
South America

South America is fourth largest in size, fifth in population.

The continent has almost every type of landscape.

It is home to the largest tropical rainforest – the Amazon River basin.
Antarctica

Antarctica is fifth largest in size, seventh in population.

It is covered by 98% ice and snow.
Semester 2 LET 1-2
4/26/14 – 4/27/14
Europe

Europe is sixth smallest in size, third largest in population.

Europe is sometimes collectively known as Eurasia.
Australia

Australia is the smallest continent and sixth largest in population.

Australia is the only continent that is also a country.
Geography (Exploring the World) – Oceans
Pacific Ocean

Largest and deepest of all four oceans.
o It is 12,900 feet deep.
Atlantic Ocean

Second largest body of water on Earth.
o It is 11,700 feet deep.
Indian Ocean

The Indian Ocean is the third largest ocean.
o It is 12,600 feet deep.
Arctic Ocean

It is the smallest and shallowest of all four oceans.
o The ocean is 4000 feet deep.
All four oceans are salt water and cover more than 70% of the Earth.
Reading a map in ROTC can also be found in LET 3-4 Notes
Semester 2 LET 1-2
4/26/14 – 4/27/14
Maps Continued
Differences between the Types of North

True North – Actual North

Grid North – Map’s North

Magnetic North – Compass’s North
To read a map you must read to the right and up.
Example
81
80
X (02/79)
79
78
01
02
03
Remember, you must go upright from the point!

4-digit grid coordinate gets you between 1000 meters from location

6-digit grid coordinate gets you between 100 meters from location

8-digit grid coordinate gets you between 10 meters from location
4-digit
Ex.) 04/78 – Cut in half. Go to the right 4 and up 78.
6-digit
Ex.) 045/817 – Split in half. Go to the right 4 and up 81. Then use a protractor to go right 5 and 7
up.
8-digit
Ex.) 0325/8615 – Split in half. Use last 2 digits as a decimal. Go right 3, up 86. Use protractor to
go right2.5 and up 1.5.