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CIENCIAS DE LA NATURALEZA 1º DE E.S.O. PRIMER TRIMESTRE FIRST TERM Chapter 2: The Earth in the universe

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Presentation on theme: "CIENCIAS DE LA NATURALEZA 1º DE E.S.O. PRIMER TRIMESTRE FIRST TERM Chapter 2: The Earth in the universe"— Presentation transcript:

1 CIENCIAS DE LA NATURALEZA 1º DE E.S.O. PRIMER TRIMESTRE FIRST TERM Chapter 2: The Earth in the universe Planet Earth seen from the Voyager 1 in 1990

2 2.3. EL MOVIMIENTO DE ROTACIÓN EL DÍA Y LA NOCHE qqoAEKVRu00&feature=related Click see and answer … ¿Puede ser la misma hora en todos sitios?

3 HUSO HORARIO: ZONA ENTRE DOS MERIDIANOS CONSECUTIVOS Longitude and Time If you place meridians 15° apart starting with the Prime Meridian, you will divide the Earth into 24 zones. These correspond to the 24 hours in a day THE ROTATION MOVEMENT

4 As you travel around the world to the east, you gain an hour in time for each zone you cross. If you travel to the west you lose an hour. As you travel around the world to the east, you gain an hour in time for each zone you cross. If you travel to the west you lose an hour THE ROTATION MOVEMENT

5 THERE IS A 1 HOUR TIME DIFFERENCE FOR EVERY 15° OF LONGITUDE The world rotates (spins) 360° in 24 hours. 360° / 24 hours = 15° per hour The world has 24 time zones, each l5° apart THE ROTATION MOVEMENT

6 EAST INCREASE Time is forward to all places to the east WEST LESS Time is backward to all places to the west 2.3. THE ROTATION MOVEMENT

7 If it is 9 p.m. at Position D, what time is it at position C? Position B? East Increase – West Less (1 hr per l5°) 2.3. THE ROTATION MOVEMENT

8 If it is 9 p.m. at Position D, what time is it at position C? Position B? East Increase – West Less (1 hr per l5°) 5 p.m. 3 p.m THE ROTATION MOVEMENT

9 If it is 1 p.m. at Position X, at which location is the time 5 p.m. ? East Increase – West Less (1 hr per l5°) 2.3. THE ROTATION MOVEMENT

10 East Increase – West Less (1 hr per l5°) 5 p.m. If it is 1 p.m. at Position X, at which location is the time 5 p.m. ? 2.3. THE ROTATION MOVEMENT


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