we're back on you can do a lot of cool demonstrations and experiments with dry ice and you don't have to be a mad scientist to get on the fun get in on the fun we've got Aon udaily here a stem specialist from rer Mountain Science Center welcome thanks for bringing the fun yeah no problem um rer Mountain Science Center always making learning fun as we prepare to go into our demonstration give us that overview what do we need to know about dry ice so dry ice it's frozen carbon dioxide um it is ver
y cold so we don't want to touch it with our hands going to use tongs and special gloves um it is uh it's solid carbon dioxide which um normally like that's what we are exhaling um but obviously like it doesn't look like this when we exhale it um it's a gas um and uh let me go ahead and put some in water just so you can see it faster cuz what it does the reason it's called dry ice is it goes straight from a solid to a gas okay so that's what happens in water check that out just a just a little b
it of dry ice and what's happening there so um the water there's heat from the water it's quickly going towards the dry ice and causing it to um do super fast sublimation it's turning into a gas so this I don't care if you're a toddler or grownup everyone's going wow dry W it looks so cool um and I'm going to show you one more thing that's kind of awesome um I have more water here and I have this is just an indicator um I'm going to just sort of pour a good portion in there and it basically um k
ind of shows whether something is an acid or a base and oh okay good notice it's sort of changing color already it started off as green um I am going to put a little bit more dry ice in there and see if we get another color change okay um so let's do that and what will we find out so it should turn more acidic which is going to make it turn more red um look at that yeah so that's because when uh the carbon dioxide bubbles through the water it makes something called carbonic acid which is an acid
so this is okay so now this is the part where the kids are completely in awe and we can do more there are other enir ments for dry ice for example I you you're talking about a film canister what happens if dryce goes in there okay so we do have these film canisters this is the one though right before we went on you asked me this question you said if this shoots up in the air is that a problem yeah I'm wait I don't know how high up in the air we can do this first it goes High could we put it on
the floor would we have less chance of we would have less chance of hitting something if we did it on the floor but we can do this part first we not go anywhere okay okay good okay this is more just um just water and I'm going to put some oh no my detergent not open hold on a minute let me get we got time for that as you're opening talk about what we're about to see then okay so um this is just on dish soap I'm putting it in here so that we can um make bubbles so basically instead of bubbling up
this way and looking like um uh it's going to be trapped in exactly it's going to be trapped in a bubble and it's going to look uh kind of awesome and then it would be totally safe to like pop it with our hands this is going to be amazing is this where I put on my safety goggles by any CH yeah let's go ahead and do that let's do that yeah and that is mostly for those cuz those shoot up into the air in a very a very alarming way okay so I'm going to put a bunch in so that it will happen fast exc
ellent it's going to Bubble over it is and I have a little trade of try to protect the table but we can uh we can touch it and it's kind of super fun and it releases little Puffs it does what are we seeing here so actually um they're full of carbon dioxide which is um but the thing you're seeing is actually um water it's actually water vapor because it's so cold it kind of makes a little Cloud isn't that satisfying that is amazing and are the kids gathered around at this point getting to touch i
t and everything yes um so we do have one lesson where kind of if we have extra time at the end we'll kind of walk walk around with a with a container like this and let them kind of Pat and they very much enjoy that cuz it's super fun um now with this one I got to wonder is there an amount we can make it less of a blast if I put this around up front maybe move to the front of the table we put this on the ground on this cooler um yes we can try I mean it is it is going to go kind of High um um bu
t we could try it are you do you want to try um am I getting any guidance I don't have any support in this matter at the moment but knowing that it probably goes up high and could could put our lights in danger what what would we be seeing if you could describe it with words it will shoot in the now they're very light film canisters um the whole canister will shoot up the canister but it will be empty so it's like a very light plastic thing that just goes into the air um we do feel like we're zo
omed out for it let's go okay okay go ahead all right good okay so I'm going to go ahead and drop a little bit of dry ice in and what's going to happen is you know it's a gas very quickly so when I seal it and shake it and turn it upside down in just a second you can see it sort of swelling okay oh that was that was totally worth doing I'm glad okay good I'm glad we did too and that's the whole idea you can also put out a candle with carbon dioxide from dry ice there's so much you can do but the
whole idea is this is how you connect with children with kids making them excited to learn right you're passionate about this super fun love it love dry ice even though I use it almost every day awesome fun all the time you're always doing some fun Erin thank you so much that was wonderful R Mountain will be open on March 15th this Friday even though it's a school district holiday it's also open for afternoon Explorations on Thursday and Fridays from 11:30 to 5:00 p.m. people can learn more abo
ut all your programs and the rer mountain Science Center Online we'll have a link on access carolina.com
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