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.