Through the long and dark Arctic winter, the mother Polar Bear sat quietly in her den. She had given birth to her cubs, and was waiting for them to grow strong enough to follow her out to the ice pack.
Examining ancient trees helps scientists get an amazing picture of Earth’s life, for trees are a record of their life time. By looking closely at the rings of a tree, scientists can not only tell how old it is; they can also tell you that in one summer in 1453 and again in 1601, there were freak cold spells.
Switch on the television and you are bound to see some cola advertisements. Aamir Khan, a Bollywood hero, pops open a cola and the bubbly drink fizzes to the top. Have you ever wondered what causes the countless teeny bubbles in all these soft drinks?
How do you make tea? Simple, put a teaspoon of tea into a boiling cup of water. Strain the water, pour some milk and sugar to taste and the tea is ready! Interestingly, everything that we prepare has a recipe and is made up of simpler ingredients.
On every Diwali, known as the festival of lights, our family has a big discussion on the kind of lighting we should have. And after talking about candles or electric bulbs we invariably choose the _diya_s or earthen lamps for their beautiful flames.
If you have viewed a crescent moon on a clear night, you would have observed an eerie glow around the moon. This is called earthshine. Do you know why the moon glows?
The eerie glow around a crescent moon is called earthshine.
Konish Biswas, a student of Standard VIII puts forth his views on a problem that is affecting the whole planet.
Nowadays as you know, there is a lot of pollution in the atmosphere. The level of carbon dioxide and other such gases (known as greenhouse gases) is rising.
September 23: Earth is the only planet with an atmosphere congenial to life forms as we know of. If a blanket of air didn’t surround us…our planet would have been a frozen wasteland – much too cold for human habitation.
Where: Tokyo, Japan
January 23, 2009 : A space centre in Tanegashima, a remote island about 970 kilometers southwest of Tokyo, today launched the first satellite designed to monitor carbon dioxide emissions. It is named ‘Ibuki’, which means ‘breath’.
Where: Poznan, Poland
December 13, 2008 : Global warming affects everyone. Finally, after years of negotiations, most countries in the world have agreed to work together to reduce how much they pollute the Earth’s environment. The United Nations Climate Change Conference began here on December 1, 2008 with delegates from 190 countries.
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