How to Make an Underwater Volcano | Science Projects
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Hi. When you guys think of natural disasters, number one natural disaster, when I ask my kids to make a prediction, to give me what they think is a natural disaster, everybody says, volcanoes. \r
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Now, when you guys usually make volcanoes its always the same experiment. Baking soda, vinegar, kaboom. Baking soda, vinegar, kaboom. Okay, Im a little bored with that. Watch this. And all we need is water. Water and food coloring and I can make something called an underwater volcano. \r
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See, volcanoes arent just on land. Theyre also under water and when you see it ually erupt under the water your eyes are just like What? How did that happen? Its amazing. Now, check this out.\r
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What I suggest you do first is just get some water, fill it up and put it aside for just about an hour so that it becomes room temperature. If you dont know what room temperature is, it is the temperature of the room. The temperature in Hawaii is going to be different than the temperature in New York, so the room temperature here will be different than the room temperature in Alaska. It doesnt matter where you live, it just matters that it is the temperature of the room that youre in. \r
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What Im going to do is, I think your cup should be clear, because if it is not clear youre not going to see it. Hello, its a little boring, you want to be able to watch what is happening. So, Im going to take a clear cup and Im going to fill it up with water at room temperature. Just three quarters of the way.\r
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Now, step two I am going to take a little vial. It doesnt have to be a vial, it could be a little container, it could be a baby food jar, just be creative. This is all about doing science using that you have at home. I am going to take this and a popsicle stick, again, if you dont have a popsicle stick you can use a tree branch. It can be anything that you have. I am going to take it and a rubber band and I am going to create a lowering device, because I am going to fill this up with extremely hot water. I take my rubber band, take the stick, wrap it around. Two, three, four, five and six. \r
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Now, check this out, I created a lowering device. What I did was, you could use regular hot water from the tap, or if you wanted to make the water a little hotter ask your mom and dad to heat up some water, microwave, adult supervision though, please guys, you dont want to get burned, and what I am going to do is just add a little bit of red food coloring. Because, think about it, when you think of hot what color comes to mind? Red, I know, thats why I am going to make this red so that you, obviously, know its hot. I am going to add about two or three drops of red food coloring, ually, you know what? I think its cool if we make it even redder so lets add five more drops, one, two, three, four, five, six, seven wait, thats not five, sorry. \r
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Now stir it around and I really dont want to touch it because its hot. So, now I am going to take my lowering device and I am going to fill it up, do not leave any air at the top of your vial. Im going to fill this up with water and you should not put your face close to it because the air bubbles are going to pop up and you dont want hot water hitting your face. Thats not good. Fill it up and now I have my red very hot water.\r
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Now the key to this experiment is do not tilt your vial, dont tilt it to the left, dont tilt it to the right, as youre taking it, youre going to lower it straight down into the water at the room temperature and whatever you do, do not let go of the stick, because then it would just float around. You want to take it and go straight down into the water at room temperature. I want everybody to make an observation. An observation in science is so important, you just watch very carefully what happens to all of the hot water. Are you ready? Want to do a countdown? Lets do a countdown, ready? Five, four, three, two, one and slowly lower it. \r
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And if you drop the eye level, youre going to notice all that hot water is rushing to the top of the surface of the water at room temperature. Not one drop of the hot water is at the bottom of the container. Its all at the top, because the heat made the water molecules move faster and when the water molecules move faster, it became less dense than the water at room temperature and when water or air is less dense it rises. As you can see all of it rose to the top. \r
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If you dont believe me, we can do the same experiment with cold water. We can do that right now. And if you look, its still all red at the
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Watch more How to Do Small Science Projects for Children videos: \r
\r
\r
\r
Hi. When you guys think of natural disasters, number one natural disaster, when I ask my kids to make a prediction, to give me what they think is a natural disaster, everybody says, volcanoes. \r
\r
Now, when you guys usually make volcanoes its always the same experiment. Baking soda, vinegar, kaboom. Baking soda, vinegar, kaboom. Okay, Im a little bored with that. Watch this. And all we need is water. Water and food coloring and I can make something called an underwater volcano. \r
\r
See, volcanoes arent just on land. Theyre also under water and when you see it ually erupt under the water your eyes are just like What? How did that happen? Its amazing. Now, check this out.\r
\r
What I suggest you do first is just get some water, fill it up and put it aside for just about an hour so that it becomes room temperature. If you dont know what room temperature is, it is the temperature of the room. The temperature in Hawaii is going to be different than the temperature in New York, so the room temperature here will be different than the room temperature in Alaska. It doesnt matter where you live, it just matters that it is the temperature of the room that youre in. \r
\r
What Im going to do is, I think your cup should be clear, because if it is not clear youre not going to see it. Hello, its a little boring, you want to be able to watch what is happening. So, Im going to take a clear cup and Im going to fill it up with water at room temperature. Just three quarters of the way.\r
\r
Now, step two I am going to take a little vial. It doesnt have to be a vial, it could be a little container, it could be a baby food jar, just be creative. This is all about doing science using that you have at home. I am going to take this and a popsicle stick, again, if you dont have a popsicle stick you can use a tree branch. It can be anything that you have. I am going to take it and a rubber band and I am going to create a lowering device, because I am going to fill this up with extremely hot water. I take my rubber band, take the stick, wrap it around. Two, three, four, five and six. \r
\r
Now, check this out, I created a lowering device. What I did was, you could use regular hot water from the tap, or if you wanted to make the water a little hotter ask your mom and dad to heat up some water, microwave, adult supervision though, please guys, you dont want to get burned, and what I am going to do is just add a little bit of red food coloring. Because, think about it, when you think of hot what color comes to mind? Red, I know, thats why I am going to make this red so that you, obviously, know its hot. I am going to add about two or three drops of red food coloring, ually, you know what? I think its cool if we make it even redder so lets add five more drops, one, two, three, four, five, six, seven wait, thats not five, sorry. \r
\r
Now stir it around and I really dont want to touch it because its hot. So, now I am going to take my lowering device and I am going to fill it up, do not leave any air at the top of your vial. Im going to fill this up with water and you should not put your face close to it because the air bubbles are going to pop up and you dont want hot water hitting your face. Thats not good. Fill it up and now I have my red very hot water.\r
\r
Now the key to this experiment is do not tilt your vial, dont tilt it to the left, dont tilt it to the right, as youre taking it, youre going to lower it straight down into the water at the room temperature and whatever you do, do not let go of the stick, because then it would just float around. You want to take it and go straight down into the water at room temperature. I want everybody to make an observation. An observation in science is so important, you just watch very carefully what happens to all of the hot water. Are you ready? Want to do a countdown? Lets do a countdown, ready? Five, four, three, two, one and slowly lower it. \r
\r
And if you drop the eye level, youre going to notice all that hot water is rushing to the top of the surface of the water at room temperature. Not one drop of the hot water is at the bottom of the container. Its all at the top, because the heat made the water molecules move faster and when the water molecules move faster, it became less dense than the water at room temperature and when water or air is less dense it rises. As you can see all of it rose to the top. \r
\r
If you dont believe me, we can do the same experiment with cold water. We can do that right now. And if you look, its still all red at the
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