1 00:00:00,620 --> 00:00:23,800 oh hello friends are you wondering what this is well it's the molten lava that comes out from a 2 00:00:23,800 --> 00:00:34,359 volcano come let me tell you what a volcano is zoom in i'm sure you've seen mountains that open 3 00:00:34,359 --> 00:00:43,320 up and blurt out thick molten semi-solid like substance well that's called a volcano let's 4 00:00:43,320 --> 00:00:52,200 learn more about it a volcano is a vent or chimney that connects magma from within the earth's crust 5 00:00:52,200 --> 00:00:58,799 the Earth's surface. The liquid rock is called magma when it is under the Earth's 6 00:00:58,799 --> 00:01:11,400 surface and lava after it comes out. So how does a volcano erupt? The molten rock 7 00:01:11,400 --> 00:01:16,980 stored in the magma chamber rises through the crater pipe pockets. As it 8 00:01:16,980 --> 00:01:24,900 travels up the main vent gases expand and water becomes steam creating pressure when the pressure 9 00:01:24,900 --> 00:01:31,319 can no longer be contained the volcano erupts through the crater and secondary side vents 10 00:01:31,319 --> 00:01:41,400 common volcanic gases include water vapor carbon dioxide sulfur dioxide hydrogen chloride hydrogen 11 00:01:41,400 --> 00:01:47,879 fluoride and hydrogen sulfide popular belief is that volcanoes are large 12 00:01:47,879 --> 00:01:53,760 cone-shaped mountains but that's not true there are many more types of 13 00:01:53,760 --> 00:02:01,840 volcanoes such as white plateaus fissure vents and bulging dome shapes there are 14 00:02:01,840 --> 00:02:08,699 also volcanoes found on the ocean floor and even under ice caps such as those 15 00:02:08,699 --> 00:02:15,939 found in Iceland trivia time the word volcano originally comes from the name 16 00:02:15,939 --> 00:02:23,699 of the Roman god of fire Vulcan the tallest volcano in the solar system 17 00:02:23,699 --> 00:02:31,860 isn't on earth at all but on Mars so tune in next time for some more 18 00:02:31,860 --> 00:02:38,599 fun-filled facts this is me zooming out