ntroduction (Time Frame: ___Day 1_____)

To locate exact places on the earth, one must look at the intersecting lines latitude and longitude. The combination of these

lines form a grid. The point where lines of latitude and longitude meet or intersect is called coordinate. But, what is the

difference between these two terms? Lines of latitude measure north-south of the equator. They are all parallel to each other,

thus, they are referred to as parallels. Longitude is the measurement east or west of the prime meridian and are called

meridians.

Equator is an imaginary line drawn around the earth equally distant from both poles, dividing the earth into northern and

southern hemisphere and marked as 0° latitude. Prime meridian is the earth's zero of longitude, which by convention passes

through Greenwich, England.

How do captains of the ships locate their specific destination?

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