World Geography ( Disciplines, Earth, Sun, )

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Information about World Geography ( Disciplines, Earth, Sun, )

Published on December 30, 2016

Author: sidcjsid

Source: slideshare.net

1. • Geography - Studies the Earth's surface. It also occupies a unique position in the field of knowledge due to the richness of its content. It also provides connecting links between among various disciplines.

2. • Arts and Humanities • Physical Sciences • Biological Sciences • Social Sciences • Mathematical Sciences

3. • Natural Science –Studies Nature ( water, landforms, minerals, soil, climate and the surface of the Earth)

4. • Artistic works, like paintings, sculptures, literature, music, dance

5. • Solar system -consists of the Sun and the Nine planets. (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto. These 9 planets revolving around the sun follows elliptical orbits to maintain fine balance of the 2 opposing forces. (Gravitational Attraction, Centrifugal Force)

6. also known as GRAVITY, keeps the planets from sailing out into space as they revolve around the sunin their particular orbits

7. • This force tends to make moving bodies fly away from the center of rotation. • an apparent force that acts outward on a body moving around a center, arising from the body's inertia. Asteroids - group of planetary fragments Meteors - chaotic wanderers

8. - source of solar radiation also called sunlight - most important to the Earth and to the geographic study - center of the Solar System - richest source of electromagnetice energy (in the form of heat and light)

9. • is a minor planet bound to an extraordinary star in the outskirts of a galaxy known as Milky Way, far out in the immeasurable universe

10. • it is nearly but not exactly spherical, it is known that the Earth departs from a perfect sphere. • Equatorial diameter - 7,926 miles • Polar diameter - 7,900 miles • The earth is pear shaped or an oblate ellipsoid

11. • Crust- outermost layer that covers the Earth like a thin skin • composed of 3 kinds of rocks • Igneous-primary rocks of the Earth's crust • Sedimentary- cover much of the Earth surface, develop from materials that were once part of older rocks, plants, animals • Metamorphic- formed deep in the crust when igneous and sedimentary rocks are changed by heat and the weight of the crust presses on them

12. • Mantle- thick layer beneath the crust , it goes down about 1,800 miles or (2,900 km)

13. • Core- occupies the central region, center of the Earth • it's divided into zones • Inner core- radius about 780 miles is quite rigid • Outer core- its surrounding is almost liquid

14. • Rotation – rotates on its axis from west to east. – causes the alternatives of day and night • Revolution – motion of the Earth in its travel path or orbit around the Sun, west to east – Period of revolution is 1 year

15. • International Date line or also known as IDL, eliminated the problems on time • is the place where one calendar day ends and the next begins • an imaginary line located at 180 degrees longitude • Leap year- an extra day added to the calendar, every four years of February

16. • Seasons- are the divisions of the year into dry or wet, or into spring, autumn, summer and winter • Summer Solstice-days are longer in the Southern Hemisphere, Nights are longer in the Northern Hemisphere • Winter Solstice- days are longer in the Northern Hemisphere, Nights are longer in the Southern Hemisphere

17. • It is the equal day and night The Equinoxes • Vernal Equinox • Autumnal Equinox

18. • Dr. Cecilio D. Duka, World Geography, Rex Bookstore Inc., 2001

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