00:03Oh, hey, hi! I'm Chris and Chris, and welcome to So Cool Science!
00:08Science you can do right at home!
00:11This is Old Faithful, and I'm going over to today's science file.
00:17And today's science file, it says...
00:21How do geysers work?
00:25Well, that's an awesome question!
00:27Try this!
00:35You will need a pot, a funnel, some water, and your stove.
00:40Start by getting yourself some pot. I mean, a pot.
00:44Yeah, yeah, yeah, a pot.
00:46And you're going to take your pot, and you're going to fill it with water.
01:00Next, get yourself a funnel. And you're going to place your funnel inside your pot like this.
01:06Next, you're going to get yourself some tin foil.
01:11No!
01:12You don't need, like, time. You just need, like, a little bit, you know.
01:15Because all you're going to do is, like, hover over the top of the pot.
01:20Okay, so poke the funnel through the tin foil.
01:24And then wrap the tin foil around the pot.
01:32Okay, so now place this on your burner, and set the burner to the highest temperature.
01:37Now, hey, listen, stand back, because this thing is going to be shooting off steam like crazy.
01:59What does that remind you of?
02:01Never mind!
02:02Whoa, check that out!
02:03It looks just like a geyser.
02:09That's so wicked cool!
02:11So, how do geysers actually work in the Earth's crust?
02:15Well, do a look at me!
02:17Take a closer look at this.
02:20Geysers are eruption spouts of steam and hot water from within the Earth's crust.
02:25Geysers start out as hollow chambers in the Earth's crust that get filled with water from the water table or
02:31underground rivers.
02:32If these water chambers happen to be near a volcanic source, the volcanic rock boils the water.
02:38Some of this water escapes as steam, which lowers the weight of the water.
02:42Since the boiling point of the water drops down below the already boiling water, this causes the water to instantly
02:48vaporize or expand rapidly.
02:51This rapid expansion creates enough pressure, which causes it to erupt from the Earth's crust as a jet of steam
02:58in hot water.
02:59The height of the geyser depends on the amount of water.
03:02The more water you have, the more water will instantly vaporize and thus more pressure, leading to a higher spot.
03:09Almost all the geysers on Earth occur in Iceland, New Zealand, and the United States.
03:15So now you know more about geysers.
03:18You know, making your own geyser right at home.
03:23This is why science is so cool.
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