Participants:
Series Code: CIS
Program Code: CIS200012S
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00:01 The experiments you will see
00:02 have been carefully done by professionals, 00:04 and should not be tried at home without parental guidance. 00:06 Please follow the caution signs throughout this program. 00:33 Hey, kids, are you ready for some fun and experiments? 00:35 We have an exciting one for you today, 00:38 but first let me introduce you to Professor Roy. 00:40 Hi. 00:42 How are you today? I'm good. 00:43 Yay. 00:45 We have some helpers, Jafet, Amy, Sebastian and Adriana. 00:49 Are you ready for something exciting today? 00:51 Yes. I am too. 00:53 What do you have for us today? 00:55 Well, I thought we talk about clouds. 00:56 Clouds. 00:57 Maybe we can make a cloud. 00:59 Really? 01:00 It would be kind of fun, wouldn't it? 01:01 It would be. 01:03 Wouldn't you be excited to make one? 01:04 Yeah. 01:05 So if we're talking about clouds, 01:07 then we're kind of talking about weather, right? 01:08 Okay. So what drives our weather? 01:10 What is the most important thing 01:11 about weather? 01:12 Without this we wouldn't have our weather. 01:14 What do you think it is? 01:15 When you go outside, huh? 01:16 The sun. It's the sun, that's right. 01:18 Actually the sun drives our weather. 01:19 Isn't that interesting? 01:21 You know, most of the planet is water, isn't it? 01:22 Okay. 01:23 And the sun shines down on the water 01:25 and the lakes and the streams and the oceans 01:26 and all of that water does what? 01:28 Evaporates. 01:29 Evaporates, goes up into the air, right? 01:31 And then we have groundwater too. 01:33 Then we have some plants 01:34 and the plants give off water too. 01:36 And when a plant gives off water, 01:37 we call it transpiration, ain't that cool? 01:39 I mean, a tree will give off 01:41 gallons and gallons of water every day 01:43 and all that goes up to the atmosphere. 01:45 And eventually there's so much water 01:46 in the atmosphere. 01:48 What forms? 01:49 A cloud. A cloud forms. 01:50 And then the cloud gets so, 01:52 it gets so dense and it gets so heavy. 01:54 And what happens then? 01:56 It starts raining. 01:57 Rain or a precipitation, right? 02:00 Which could be what? 02:01 Snow, sleet, hail, rain. 02:06 And it's called the water cycle, 02:08 but clouds are very important, aren't they? 02:11 Got to have clouds, otherwise we can't have life 02:13 on planet earth. 02:14 I can't wait to see, 02:16 let's see what you're going to do. 02:17 And let's go outside. Are you ready? 02:18 Yeah. All right. Join us, let's go. 02:22 Oh, my. 02:23 I can't wait to see what's happening. 02:26 Oh, I wonder what that is. 02:29 Ooh. 02:30 I think I have a guess. 02:31 This is liquid nitrogen. 02:33 You ever had any? 02:35 No. No. 02:36 We've got some liquid nitrogen because we want to do 02:38 some really neat experiments with it, right? 02:40 Because it's very, very cold. 02:41 It's the second coldest liquid that we know of. 02:43 Okay. 02:45 And the first coldest happens to be what? 02:46 Liquid helium. 02:48 Liquid helium. That's right. 02:49 We don't have it. We will have liquid nitrogen. 02:50 Now, that's interesting to me, but you know, it's so cold 02:53 that it looks like it's hot, doesn't it? 02:56 You know, sometimes you get steam 02:58 and condensation coming out. 02:59 Well, that's condensation coming out right there. 03:02 And it's actually 03:04 because of the water molecules in the air. 03:07 We're actually seeing lots of water molecules. 03:09 Today we're gonna see trillions and billions of water molecules 03:13 'cause we're gonna make a huge cloud. 03:15 So if we're gonna make a huge cloud, 03:16 you think we need more than this? 03:17 Yes. Yeah. 03:19 In fact, we've got 10 liters of liquid nitrogen 03:22 in this Dewar right here. 03:24 A Dewar is a cryogenic container 03:27 and it holds our liquid, 03:30 that liquids that are very, very cold. 03:32 We could have liquid hydrogen. 03:33 We can have liquid oxygen. 03:35 We could have CO2 liquid, carbon dioxide. 03:38 There's all kinds of different liquids. 03:39 So, but most of the air that we breathe 03:41 is liquid, isn't it? 03:43 Wait, no. 03:45 It's an air gas. 03:46 But we can change some of the air gas 03:48 into a liquid by pressurizing it, 03:51 right by squeezing it, 03:52 by putting it under a lot of pressure 03:54 and then cooling it down. 03:55 That's really cool. 03:57 This is boiling right now. 03:58 Isn't that interesting? 03:59 And it boils at that temperature 04:01 over minus 196 degrees Celsius. 04:03 It's just really, really cool. 04:04 Well, I'm gonna make a little cloud right here. 04:07 I'm just gonna pour it on the ground. 04:08 We're gonna make a little cloud, 04:10 then we're gonna make a really, really big cloud. 04:12 Are you ready? Yeah. 04:13 Okay. All right. But you know what? 04:14 I'm going to put on my safety glasses. 04:16 You have your safety glasses? 04:17 Yep. Okay, good. 04:18 I'm going to put mine on too. 04:20 You don't want to get this splash in your face. 04:21 Not a good idea. Okay. 04:23 How about a countdown? 04:24 Three, three, two, one, I poured out. 04:25 Whoo. 04:27 There's our cloud. 04:28 Now what's the name of that cloud? 04:30 You know, clouds have names, don't they? 04:32 Can you name a cloud for me? 04:34 Cirrus. 04:35 Cirrus clouds, any others? 04:38 Nimbus. Right. sNimbus clouds, right. 04:40 Cumulonimbus, okay. 04:42 And stratus, right? 04:43 And stratus clouds. 04:45 What do we call a cloud 04:46 that's low flying on the ground. 04:48 What do we call it? Like a fog. 04:49 That's right, we call it fog. 04:51 So are you ready for our big cloud? 04:53 Yes. Okay. 04:54 So this is what I'm gonna do. 04:56 I'm going to put my safety shield on, right, 04:57 besides my safety glass. 04:58 I don't want to get that in my face 05:00 'cause I'm going to be really close to this. 05:01 And then I have in this container right here, 05:03 I've got hot water, right? 05:05 Hot water and the hot water is just off of boiling. 05:08 So that's really, really hot, 05:09 which is about a 100 degrees Celsius, right? 05:11 That's when water boils. 05:13 And what I'm gonna do is I'm gonna come over here 05:14 and I'm gonna pour all of this liquid nitrogen 05:18 about 10 liters into this trashcan 05:20 and in the trashcan we have an ice chest, 05:23 okay, because it's thicker and it's a lot stronger. 05:25 So we're gonna fill that up with liquid nitrogen. 05:27 And then I'm gonna come over here 05:28 and we got some boiling, hot water, 05:30 just off a boil. 05:31 And I'm going to pour all of it. 05:32 All of a sudden, all at one time, 05:34 right inside of that liquid nitrogen. 05:37 And you know, what's going to happen? 05:38 We're going to have a reaction. 05:41 We're going to vaporize the water. 05:45 In here, we're gonna vaporize the liquid nitrogen 05:48 and all of it is going to be explosive really? 05:51 And it's gonna go up into the air. 05:53 And then since it's going to be so cold, 05:55 we're gonna condense the water molecules in the air 05:58 that we can't see right now. 05:59 They're all around us 06:01 to make a beautiful cloud, right? 06:02 Okay. 06:03 Hey, so why don't you stand right over there. 06:05 And I'm going to get myself ready. 06:07 And I'm going to get my safety shield on 06:10 right here we go. 06:11 Let's get my safety shield on and tight. 06:14 Plus I have my glasses on. 06:16 All right, here we go. 06:18 And I'm going to put our 10 liters 06:20 of liquid nitrogen right in there. 06:22 And I'm going to put my gloves on. 06:23 That'd be a good idea. 06:25 Yes. 06:26 Be a real good idea. 06:28 Right. Here we go. 06:29 Let's put our gloves on 06:30 because that's going to be really, really what? 06:32 That's cold or hot. 06:33 Cold. That's cold. 06:34 This is cold or hot? Hot. 06:36 Hot. So we have a mixture, don't we? 06:37 Yeah. 06:39 And we have a differential temperature 06:40 around 400 degrees or more. 06:41 All right. So here we go. 06:43 Let's pour all of this inside here. 06:44 All right, here we go. 06:47 We're starting to make 06:48 a little cloud right now, aren't we? 06:49 Yeah. Okay. 06:51 So I'm filling up that ice chest in here 06:53 with about 10 liters of our liquid nitrogen. 06:57 Oh, wow. 06:58 And we've almost got it all in. 07:02 It's a lot of liquid nitrogen. 07:04 See how we're doing. 07:06 That is a lot. 07:08 That's the thing I'll do. 07:11 When I think about got it. 07:13 Okay. There we go. All right. 07:14 So we've got all of that in here. 07:16 Let me set this down. 07:17 All right. 07:18 Now I'm gonna take the lid off of this. 07:20 Right, here we go. 07:22 Let's take our lid off of that. 07:23 Cool. 07:25 This is boiling water. 07:26 This is water straight off of the boil 07:29 and then we'll need a countdown, right? 07:30 All right. Okay. 07:32 Let me adjust this a little bit. 07:33 All right, here we go. All right. 07:35 We'll start off with 10. 07:36 Are we ready? Yes. 07:37 Okay. Here we go. 07:39 Ten, nine, eight, seven, 07:41 six, five, four, three, 07:45 two, one and here we go. 07:47 Woo! 07:50 Whoa! 07:53 Whoa. 07:55 Look at that cloud. Isn't that amazing? 07:57 That was awesome. 07:58 That's amazing. Did you get wet? 08:00 No. 08:02 No, but you did. 08:03 I got a little wet. 08:04 And that was very, very cold, isn't it? 08:06 It broke the trash can. 08:08 It did what? 08:09 It broke the trashcan. 08:10 It cracked in the back. 08:12 Oh, it broke the trashcan. 08:13 It split it up. Is that what we're saying? 08:15 Interesting. Wow. 08:17 Have you ever heard of low front coming in, 08:18 like the weather report, 08:20 like a meteorologist 08:21 and a low front, what happens? 08:23 What kind of weather do we have 08:24 if we have a low front? 08:26 Lousy. Lousy weather. 08:28 I think it's kind of lousy weather. 08:30 Interesting, isn't it? 08:31 And if we have a high front coming in, 08:33 that means we've got what? 08:34 Good weather. Got happy weather. 08:35 Nice happy weather. Fair weather. 08:37 Interesting. 08:38 But we have... 08:39 What makes warmer air go up, you think? 08:43 It's colder air. 08:44 That cloud was really, really cold, 08:46 but cooler air comes in 08:48 and it forces the warmer air up. 08:50 That's really interesting, isn't it? 08:52 I love that. Wow. 08:53 And I like all different kinds of clouds. 08:54 I do too. 08:56 And it reminds me, 08:57 I remember living in Puyallup, Washington, 09:00 and out there, there was a mountain. 09:03 Of course we could see Mount Rainier. 09:05 And if there was a cloudy day, 09:07 we knew if the clouds were around Mount Rainier, 09:09 we knew it was going to rain. 09:11 It was kind of interesting. 09:12 And then when it, 09:14 we knew it was going to be a nice day 09:15 when it was sun shining outside, 09:17 and it was just beautiful outside. 09:19 It was nice to be able to see, 09:20 clouds are kind of important, right? 09:22 Because the light clouds, 09:24 how many of you have tried 09:25 to look up out in the sky and look for these clouds? 09:28 Oh, yeah. I look out for clouds. 09:30 How do you know how, what kind of day it is, 09:32 what kind of day do you think today is going to be? 09:34 Sunny-cloudy. 09:37 Sunny-cloudy. 09:38 Now what do you see those lines? 09:41 What kind of lines do you see there? 09:43 What kind of clouds are they right now? 09:45 Stratus. Yeah, they might be stratus. 09:47 Okay? They're starting to get low. 09:49 It might rain yet, but it, 09:51 oh, it might miss us still 09:52 because I see some, 09:54 almost the nice fluffy clouds that look like nice day. 09:56 So it could go either way today, right? 09:58 Yeah. 09:59 So clouds are kind of important. 10:01 And it reminds me of some Bible texts. 10:03 Can you think of a Bible texts about clouds? 10:08 I can think of some stories in the Bible. 10:10 Oh, yeah. There's some neat stories. 10:12 Elijah. 10:13 Tell me the story about Elijah and the cloud? 10:15 The one, there is a curse on land. 10:17 It wouldn't rain until Elijah said, 10:19 and there was a small cloud 10:22 that formed the size of a man's hand 10:25 over the ocean and it started to rain. 10:28 And it started to rain. 10:29 Yes. 10:31 God used Elijah for that purpose, right? 10:33 Definitely. 10:34 Can you think of another story in the Bible? 10:37 There's lots of weather 10:39 happening with Noah and his ark. 10:41 Noah and his ark. 10:42 I remember another storm that Jesus was on a boat. 10:46 Can I get more of you to turn over? 10:48 Like this, come on with this way. 10:49 Can any of you think of another storm? 10:52 Where was Jesus? 10:53 He was tired. He was preaching. 10:54 He was on a boat. What was He doing? 10:56 Sleeping. 10:57 And what was happening? 10:59 What kind of weather did we have? 11:00 Terrible storm. It was a huge storm. 11:02 You're right. And then what was happening? 11:05 The boat was gonna sink. 11:07 And what happened with everybody? 11:08 They freaked out. They were afraid. 11:09 Oh, they were afraid. Yes. 11:11 And so what happened? 11:12 What did Jesus do? He calmed the waters. 11:15 He calmed the waters. You're right. 11:17 And it reminds me of another story in the Bible. 11:21 It happens in the back of the Bible. 11:24 What's the last book of the Bible? 11:26 Revelation. 11:27 Revelation and what's another... 11:29 Who's coming in the cloud again? 11:30 Jesus. 11:32 Who is coming into the cloud again? 11:33 Let's say it together. 11:35 Jesus. All of His angels. 11:36 And that's wonderful 11:37 because we have Jesus 11:39 and we'll look looking so forward to Him. 11:40 And where is He coming? 11:41 In a Cloud. 11:43 And who's coming with Him. 11:44 All of His angels. 11:46 All His angels are coming. 11:47 And I'm so thankful that we have these wonderful things 11:48 that God has created. 11:50 And when we have clouds and when we have rough day, 11:52 sometimes we don't like. 11:54 I like, I would like to have only sunny days, wouldn't you? 11:56 Yes. 11:58 I would only like to have sunny days, 11:59 but what would happen if I only had sunny days? 12:02 We'd have no rain. 12:03 We have no rain. 12:04 So we have to thank God even on cloudy days 12:07 when things don't go quite so well. 12:09 We have to be thankful that it's cloudy 12:12 and rains sometimes, 12:14 even though I don't sometimes like rain, do you like rain? 12:17 Yeah. 12:19 We need the water cycle, don't we? 12:20 But we need the water cycle and without that, 12:22 what, if we didn't have the water cycle, 12:23 what would happen? 12:25 We wouldn't have clouds, right? 12:26 We'd have a drought and no plants would grow. 12:29 Right. Bad news. 12:30 We need the clouds. 12:32 So I am so thankful that we have clouds 12:36 and that God is always providing us. 12:38 And remember, 12:39 I have another story in the Bible. 12:41 And there was a pillar. 12:43 Pillar of the cloud 12:45 that led the Israelites through the desert. 12:46 Pillar, and you're right. 12:48 The pillar of cloud that was leading 12:50 the Israelites during the day. 12:51 And it was providing what 12:52 during the hot sun in the desert? 12:54 Shade. It was providing shade. 12:56 And at night it was doing what? 12:58 Fire. It was keeping them warm. 12:59 It was providing the fire and keeping them warm 13:02 and being the light, you're right. 13:04 And Jesus is all light. So I'm so thankful. 13:06 You ready to head back in? Yeah. 13:08 All right, come and join me. 13:09 Let's head back in. 13:13 That was so much fun. 13:15 I enjoy seeing clouds on the ground even. 13:19 Have you ever seen that before? No. 13:21 I haven't seen a cloud on the ground 13:23 except for maybe fog. 13:25 Yeah. Oh, that was fun, wasn't it? 13:26 It was a lot of fun. It was pretty too. 13:28 I liked that, which reminds me of 13:30 sometimes we see those beams that shine through the clouds. 13:33 Yeah. But I really like it. 13:35 We mentioned it before a little bit about Jesus 13:37 coming through the clouds. 13:40 I think there's a text. 13:41 Can you read it for us real quick, Sebastian? 13:54 Every eye will see who? 13:56 Jesus. 13:58 I can't wait to see Jesus, can you? 13:59 No. 14:00 I am so glad that God provided these clouds for us. 14:04 Yeah. Aren't you for protection? 14:05 It is. 14:07 We can see God's creation all around us 14:09 because creation is? 14:10 Science. 14:12 That's right. |
Revised 2021-05-06