Latitude and Longitude

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Presentation transcript:

Latitude and Longitude How do we find places on maps?

Latitude What is Latitude? Lines of Latitude run horizontally Latitude is measured in degrees. The Equator is 0 degrees Latitude. Lines of Latitude locate places North or South of the Equator. The North Pole is 90 degrees N Latitude, and the South Pole is 90 degrees S Latitude.

Longitude Lines of Longitude run vertically. They are also called Meridians. The Prime Meridian is found in Greenwich, England. The Prime Meridian is 0 degrees Longitude. Lines of Longitude locate places East or West of the Prime Meridian. There are 180 degrees of east Longitude, and 180 degrees of west Longitude.

Time Zones Time zones are broad strips that measure 15 degrees wide. Time zones differ from their neighboring time zones by 1 hour. The continental U.S. has 4 time zones, Eastern, Central, Mountain, and Pacific. In the Spring we shift the clocks 1 hour ahead. This is called Daylight Saving Time. In the Fall we shift the clocks 1 hour back.

Time Zones (cont…) Local Time and Universal Time Local Time- is what we use everyday, and regulates our lives. Examples of Local Time are: meal time, sleep time, work time, and school time Universal Time- is what we use when we need a time that is agreed upon marking time world-wide. An example when Universal Time was used was when a supernova in 1987 was first seen. Astronomers, and Astronauts use Universal Time..

Time Zones (cont….) Greenwich Mean Time- is the time that is registered at Greenwich, England. **Greenwich Mean Time is another name for Universal Time. The International Dateline was established following the 180th meridian, where ever we cross it the date advances 1 day ( if you are going west), or goes back 1 day (if you are going east).

Summary 1.What do lines of Latitude and Longitude combine to make? A grid. 2.Compare and Contrast Latitude and Longitude. Latitude- horizontal, north- south, parallels Longitude- vertical, east-west, meridians 3.What is 0 degrees Latitude? Equator 4.What is 0 degrees Longitude? Prime Meridian 5.How many time zones do we have in the U.S.A.? 4- Eastern, Central, Mountain, Pacific 6. Explain the difference between Local Time, and Universal Time. Local time- used everyday Universal Time- is used for a planetary event, or for astronomy