Day 15- Meridians

Today in class we took the test on north and south America. During the test I found that north America was harder because of all of the countries in the lower part were so close together. South America was the easiest of the two because the countries all looked different form each other. After the test we talked about meridians. Meridian or also known as longitude lines are for measuring how far you are away from the equator. Meridians also what create the rough shape of time zones. Time zones are different in different places and don't go straight down but goes around countries and cities to make life easier. Time zones are on average 15 degree because the globe is 360 and 360/24= 15 giving us 24 hours and 15 degrees on average per hour. The time zones are set up from Greenwich which is set as time 0. UMT is about the same as GMT but was created 300 years earlier.