Wednesday, October 28, 2009

Know about earth



Earth is different from all other planets in the solar system. We have vast quantizes of water on our planet, and we have oxygen to breathe. We have soil in which plants grow. There is a blanket of air around the earth, called the atmosphere that protects in form the harmful ultra violet rays of the sun. 

 

We know that the earth is like a big ball covered by water and rock. The surface of the earth has various features such as oceans, rivers, mountain, and valleys. Thank you.

 

 

Tuesday, October 20, 2009

First telephone


Hi guys,
Alexander graham bell (1847-1922) is often called the father of the telephone. He was born in Edinburgh, Scotland, moved to Canada in 1870, and later to the USA. He became an expert on the science of speech and his first inventions helped deaf people to hear sounds. During his research, bell developed a method of transmitting voice messages along a wire. In 1876 he patented the device, which is called the harmonic telegraph. This was the first telephone .Thank you.

Thursday, October 15, 2009

Master blaster sachin


Hi guys,
Sachin Tendulkar is creating his own new peaks to conquer. Already the highest scorer in both Tests and ODIs, Tendulkar, who crossed the 17,000 ODI-run mark in Hyderabad, is now eyeing a much bigger milestone: that of 30,000 international runs. Sachin, who has 12,773 Test runs, 17,168 runs in ODIs and 10 runs in the lone T20 International he has played in, is now just 49 short of the amazing landmark. Fans will be hoping he scales the peak in Guwahati. Thank you.

Thursday, October 8, 2009

know about Air

Hi folks,
Air is a mixture of gases. That means there are many gases mixed in air. You know about one already. It is water vapour, the gaseous form of water. How can you be sure that there is water vapour in air?
Put some ice or very cold water in a glass. Place the table. Soon you will see drops of water outside the glass. Where does the come from? The water vapours in the air cools when it comes near the glass and change in to water. There are many other gases in air. Oxygen, nitrogen and carbon dioxide are three of them. Of these, oxygen is the most important to us. We need to live. Thank you.

Monday, October 5, 2009

Day and night

Hi guys
Day and night
When the light of the sun falls on the earth, we have day. Only the part of the earth that faces the sun has day. The other part has night. If the earth stayed still, half of it would always have night. Luckily, the earth keeps turning. So, all parts of it have day and night. Thank you.

Sunday, October 4, 2009

About Feeding

Hi friends,
All living beings need food. Plants make their own food. Their leaves use water from the soil and carbon dioxide from the air make a kind of sugar. They need sunlight to do this. Animals cannot make their own food. They eat plants or the fresh of other animal. Nonliving things do not need food. Thank you.