1 00:00:00,620 --> 00:00:02,620 You 2 00:00:11,539 --> 00:00:14,179 Hey everyone guess where I am 3 00:00:15,380 --> 00:00:19,600 Well, don't think so hard. I am in space 4 00:00:20,420 --> 00:00:22,420 Do you see that blue ball? 5 00:00:22,780 --> 00:00:25,000 Well, that's where you are 6 00:00:25,780 --> 00:00:27,579 That's the earth 7 00:00:27,579 --> 00:00:32,500 But hey, what are these? They are the layers of atmosphere 8 00:00:33,219 --> 00:00:37,520 So, let's learn about the layers of atmosphere today. 9 00:00:37,719 --> 00:00:39,020 Zoom in! 10 00:00:39,219 --> 00:00:41,520 This is the Troposphere. 11 00:00:41,719 --> 00:00:44,719 This layer is where the weather occurs. 12 00:00:44,920 --> 00:00:51,119 This is the lowest atmospheric layer and begins at the surface of the earth.. 13 00:00:51,320 --> 00:00:54,520 ..and extends out to about 4 to 10 miles. 14 00:00:54,719 --> 00:00:59,920 The temperature of the Troposphere decreases with increase in altitude. 15 00:00:59,920 --> 00:01:07,920 Just so that you know, altitude is the height of an object or point in relation to the ground level. 16 00:01:08,920 --> 00:01:14,920 Now we are in the stratosphere, second lowest layer of earth's atmosphere. 17 00:01:15,920 --> 00:01:19,920 Here the temperature rises with the rise in altitude. 18 00:01:20,920 --> 00:01:27,920 You will also find the ozone layer here, which helps absorb harmful UV rays from the sun. 19 00:01:27,920 --> 00:01:34,829 This is the layer where you will find aeroplanes flying around. 20 00:01:35,829 --> 00:01:38,829 As the stratosphere is free of all weather disturbances. 21 00:01:39,829 --> 00:01:45,829 The stratosphere extends to about 30 to 35 miles above the earth's surface. 22 00:01:46,829 --> 00:01:51,829 This is the mesosphere, where most meteors burn upon entry. 23 00:01:52,829 --> 00:01:56,829 The mesosphere stretches up till 50 miles from the earth's surface. 24 00:01:56,829 --> 00:02:01,829 The thermosphere is next and the air is very thin here. 25 00:02:02,829 --> 00:02:05,829 Temperatures get extremely hot in the thermosphere. 26 00:02:06,829 --> 00:02:10,830 It extends up to 400 miles from the earth's surface. 27 00:02:11,830 --> 00:02:14,830 The lower part of this layer contains the ionosphere. 28 00:02:15,830 --> 00:02:21,830 Many atoms are ionized in this layer and you will also find electrical charge here. 29 00:02:21,830 --> 00:02:29,629 This is the last layer and the air is quite thin here. 30 00:02:29,830 --> 00:02:32,629 Yes, it is the exosphere. 31 00:02:32,830 --> 00:02:38,830 It goes all the way up to 6200 miles from the earth's surface. 32 00:02:43,460 --> 00:02:44,460 Did you know? 33 00:02:44,659 --> 00:02:50,259 Troposphere contains more than 75% of atmosphere's mass. 34 00:02:50,259 --> 00:02:56,259 And the ions in the ionosphere help to transmit radio waves. 35 00:02:59,259 --> 00:03:01,259 It's getting a bit spooky here. 36 00:03:02,259 --> 00:03:04,259 I think it's time for me to get back to earth. 37 00:03:05,259 --> 00:03:07,259 So this is me zooming out. 38 00:03:08,259 --> 00:03:10,259 Tune in next time for more fun facts.