EARTH ROTATION AND REVOLUTION

Name: Janneth HuntDue Date : August 12, 2014B.Ed. 3738

What Is Earth Rotation?

• The earth is always moving in the solar system

• This movement is called rotation.• Earth rotates about this axis once

each day (approximately 24 hours).

EARTH ROTATION

RESULTS OF ROTATION

Day and Night.– As the earth rotates on the axis one

half faces the sun, this half experiences day while the other half experiences night.

High and Low tides.

• This occurs when the earth spins and the sun and the moon pull it. One force is usually stronger than the other

Wind speed and Direction

• Wind on earth comes from different direction (North, South, East and West)

• Different places would get stronger surge of wind as a result of the earths speed of rotation.

WHAT IS EARTH REVOLUTION?

• The earth's revolution refers to its movement around the sun. while the EARTH revolves around the sun, it also rotates about its axis thereby exposing various parts of the earth's surface to radiation from the sun at different times leading to different seasons for different parts of the earth' surface

• Each orbit by a member of the solar system is its revolution. A revolution is also called a year. The Earth takes 365.25 day to revolve around the sun

RESULTS OF THE EARTH’S REVOLUTION

Seasonal variations (varying lengths of day

and night).Summer, Winter, Autumn and Spring.Solstices and Equinoxes

SOLSTICES The “solstice” is the day of the year when

sunlight is furthest north or south of the equator

Our summer solstice occurs on June 21st, the first day of summer.

Our winter solstice occurs on December 21st, the first day of winter

SOLSTICE

EQUINOX• The “equinox” occurs twice a year when the sun is directly

overhead at the equator• On the equinox, the hours of daylight equals the hours of

darkness.• Seasons in the northern & southern hemispheres are opposite

EQUINOX

ACTIVITY What is Earth Rotation?What is Earth Revolution?What are the result of Rotation?Name the results of Revolution?What is the difference between Rotation and

Revolution?

THE END