Mechanism of The Seasons 四季的形成

A season is a period of the year that is distinguished by special climate conditions. 

The four seasons—spring,summer, fall, and winter—follow one another regularly. 

Each has its own light, temperature, and weather patterns that repeat yearly.

Seasons occur because Earth is tilted on its axis relative to the orbital plane, the invisible, flat disc where most objects in the solar system orbit the sun. Earth’s axis is an invisible line that runs through its center, from pole to pole. Earth rotates around its axis.

Matahari - The Sun

The sun is a star, a hot ball of glowing gases at the heart of our solar system. Its influence extends far beyond the orbits of distant Neptune and Pluto. Without the sun's intense energy and heat, there would be no life on Earth. And though it is special to us, there are billions of stars like our sun scattered across the Milky Way galaxy.

Matahari adalah merupakan pusat bagi sistem suria (centre of the solar system).Matahari (Sun) adalah sejenis bintang (star), dan ia adalah satu-satunya objek dalam sistem suria/solar yang boleh memancarkan cahaya (radiate light) dan menjana tenaga sendiri. Matahari juga adalah bintang yang paling hampir dengan Bumi (Earth), iaitu kira-kira 150 juta km daripada Bumi.

All the members of our solar system

The Planets of our Solar System

Let's sing and learn :)

What is Earth?

This is the description about our planet - the EARTH. 

这是介绍我们的地球的影片，好好的欣赏吧！

http://www.youtube.com/watch?v=HGPv6vo5-l0

Our Solar System (太阳系)

This is our Solar System!

 Mercury Venus Earth Mars Jupiter Saturn Uranus Neptune