Friday, December 14, 2012

Vocabulary

Solar System - Sistem Suria              galaxy - galaksi

contituents - ahli-ahli                         Milky Way - Bima Sakti

planet - planet                                        universe - alam semesta

Mercury - Utarid                                    space - angkasa lepas

Venus - Zuhrah                                      satellite - satelit

Earth - Bumi                                           astronaut - angkasawan

Mars - Marikh                                         star - bintang

Jupiter -  Musytari                               Elliptical galaxy - galaksi berbentuk bujur

Saturn - Zuhal                                       Spiral galaxy - galaksi berpilin

Uranus - Uranus                                    Irregular galaxy - galaksi tidak teratur

Neptune - Neptun                                 atmosphere - atmosfera

Moon - Bulan                                          million - juta

comet - komet                                        billion - bilion

meteor - meteor                                

meteorite - meteorit

asteroid - asteroid

orbit - orbit

ellipse - elips


Our Beautiful Earth



Look At The Beauty Secrets Of 
Our Earth






Saturday, December 8, 2012

Solar System : Related Topic-Use Your Imagination


How Big Is The Universe?




Solar System: Related Topic - The Big Bang


How was the Universe made?


Most of the satronomers think that the Universe was formed during an even called “BIG BANG” – a giant explosion which occurred between 10 to 20 billion years ago. During the Big Bang all of  the space, time, matter and energy in the Universe was created. This giant explosion hurled matter in all directions and caused space itself to expand. As the universe cooled, the material in it combined to form galaxies, stars and planets.



Planets



Galaxy
Stars





Solar System : Related Topic - The Universe


Related Topic – The Universe



      The Universe is made up of billions of galaxies. In the Universe, there are 2,000,000,000,000,0000,000 stars. These stars made up galaxies. Each galaxy has a billion of stars. The Universe is incredibly huge. It would take a modern jet fighter more than a million years to reach the nearest star to the sun. Travelling at the speed of light (300,000km per second), it would take 100,000 years to cross our Milky Way galaxy alone.

        No one knows the exact size of the Universe, because we cannot see the edge. All we do know is that the visible Universe is at least 93 billion light years across (A light year is the distance light travels in one year – about 9 trillion km).





Wednesday, December 5, 2012

Monday, December 3, 2012

Comet - Another member of Solar System

Comet - Another member of Solar System.

What is a comet?

Comets are basically dusty snowballs which orbit the sun. They are made of ices, such as water, carbon dioxide, ammonia and methane, mixed with dust. These materials came from the time when the solar system was formed. Comets have an icy center (nucleus) surrounded by a large cloud of gas and dust (called the coma). The coma is created as the ice in the nucleus is warmed by the sun and vaporizes. Comets can develop 2 tails as they travel closer to the sun, a straight gas tail and a curved dust tail. The gas tail is created by the solar wind, whose magnetic fields pull the gas away from the comet's coma. The dust in the coma is not affected by magnetic fields but is vaporized by the sun's heat, and forms a curved tail which follows the comet's orbit.



Monday, November 26, 2012

Another member of Solar System - Asteroid



The asteroid belt lies between the planets Mars and Jupiter. It contains lumps of rock and metal much smaller than planets. These lumps are called asteroids or minor planets. Asteroid like other planets moves around the sun in its band area. They are not visible from Earth with the naked eye, but many may be seen through binoculars or small telescopes.