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LearningTranscript
00:00Air
00:03On your marks, get set, go!
00:08Sam uncle signals the little bikers to start the race.
00:14Nine of them are on the truck immediately.
00:18Armaan is struggling. His cycle refuses to move.
00:23Arzu and Mummy are surprised.
00:27He had learnt to balance himself quite well and had practiced so hard for the race.
00:34Mummy goes to see what went wrong.
00:37Armaan was sitting on his cycle trying hard to move.
00:41He had tears in his eyes.
00:44As soon as he saw Mummy, he started crying.
00:48Mummy hugged him first then looked at his cycle. It had a flat tyre.
00:53Oh! The back tyre is flat. That is why it is not moving.
01:00Armaan looked at his mother.
01:03Flat tyre? What does that mean, mom?
01:06Mummy then explained to him that the tyre has air in it.
01:12All tyres have air in them. Without air, they are of no use.
01:18Wiping his tears, she drags the cycle and takes it to a cycle repair shop in the neighborhood market.
01:27Armaan watches as the air is filled in and the tyre expands slowly.
01:35Mama, this is just like a balloon. When daddy blows into the balloon, it also becomes big.
01:43Mummy then explains to him.
01:46Mummy then explains to him that this is air.
01:51When air is blown into a balloon or tyre, it expands and only then it becomes useful.
02:01Air is everywhere. We cannot see it as it has no color.
02:08When it is still, we can neither see it nor feel it.
02:13But we are alive only because of air.
02:18We breathe air all the time. We breathe through our nose.
02:24Rho A
02:27Rho B
02:30Rho A has living things.
02:34Rho B has non-living things.
02:37What is the one common thing between Rho A and Rho B?
02:43Yes, they both need air.
02:48Rho A needs air to breathe.
02:53Living things will die if they don't get air.
02:59Plants, animals and human beings need air to live.
03:04The non-living things in Rho B need air to become useful.
03:11A balloon gives us pleasure only when it is filled with air.
03:17A tyre is of no use without air.
03:22And we cannot play with a flat football.
03:26When you fill air in them, they become big. They expand.
03:33This shows that air occupies space.
03:39A candle needs air to burn.
03:43When we cover a burning candle with a glass jar, the candle stops burning.
03:50When we cover a burning candle with a glass jar, the candle stops burning.
03:57This shows that air is needed for burning.
04:02Which of these will weigh more?
04:06Yes, the inflated tyre, balloon and football weigh more.
04:14This shows that air has weight.
04:19When the air moves or we make the air move, we can feel it.
04:27Moving air is called wind.
04:31Sometimes we feel it strongly.
04:36Sometimes we feel it gently.
04:40Armaan, Arzu and Ginger are visiting their grandparents who live near a big lake far away from the city.
04:52The children are very excited as there is so much open space here.
04:59As soon as they wake up, they run to the huge grounds overlooking the lake.
05:06It is a very pleasant day.
05:10Many things such as the sailing boat in the lake,
05:15the moving windmills make them feel the presence of wind.
05:22Armaan is happy as he can fly the kite high up in the sky.
05:29Now you know.
05:32Air is everywhere.
05:35We cannot see it as it is colourless.
05:40All living things need air to live.
05:46Air occupies space.
05:50Air has weight.
05:54Air is needed for burning.
05:59Moving air is called wind.
06:02Sometimes we feel it strongly.
06:05Sometimes we feel it gently.
06:09We should try to keep the air as clean as possible.