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Dry ice is so called because it does not melt into liquid carbon dioxide before turning into gas. The process of a liquid changing state into gas is called evaporation.
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- Demo #2: Sloshing Fog & Bubbles
- Demo #1: Candle Flame
- Demo #3: Exploding Balloon
- “Dry Ice”
- Part 1:
- Ending:
- Transcript: Intro
- Story: “The Leprechaun Olympics”
- Imagination and Brainstorming Time
- Demo #1: Candle Flame
- [Student: There’s no oxygen.]
- Demo #2: Sloshing Fog and Bubbles
- Demo #3: Exploding Balloon
- [Places balloon on top of aquarium.] I’ll just rest it right here and we’ll warm it up a bit. [Lights cigarette lighter and brings
- [When the bubbles start to
- Checking the temperature. spontaneously blow off.]
- End of Story
A cup containing dry ice and hot water is placed into the aquarium to create fog at the top, then ground fog. Carbon dioxide fog sloshes like water, and soap bubbles float on top of it.
A slab of dry ice is placed into the aquarium. A candle goes out when lowered into the invisible cloud of carbon dioxide. The same demonstration is also done with a cigarette lighter, and the flame gets smaller or larger as the lighter is raised and lowered.
Dry ice and hot water in a plastic bottle make the balloon expand, like the science teacher’s freezer that exploded. Experiment Quick Recap:
Each student gets a cup with dry ice and an alumi-num bar that screeches on contact. A few drops of dish soap are added, causing bubbles to pour out. Some plastic film cans with dry ice inside are set on the table to spontaneously explode. When hot water is added, fog pours out of the cup and spreads over the table. Instructor breaks each student’s...
Leprechauns have pots of gold that they keep at the end of the rainbow. People can get the leprechaun’s gold if they catch a leprechaun. The leprechauns are going to have their olympic games. Games include a race across the rain-bow, and tossing long poles into the air, and tossing other leprechauns into a mud puddle. Each year, Mother Nature creat...
Jack & Jill order ten thousand pounds of dry ice from the Acme Store of Everything and pour it into the mud puddle to create fog. Evil Mister Fred starts vacuuming up the fog. Evil Mister Fred couldn’t see very well in the fog, and he crash-landed in the mud puddle. The mud covered Evil Mister Fred, and the dry ice turned it into a hard mud shell a...
We’re going to do some experiments with something that’s kind of either really hot or really cold. It’s made out of the same stuff that’s in our breath when we breathe out. It’s the same stuff that makes the little bubbles in soda pop -- bubble, bubble, bubble, bubble. And it’s the same stuff that plants breathe to stay alive. Yeah, and it’s the sa...
Do you know what a leprechaun is? Little short guy, and he hangs around rainbows, and he stores his treasure at the end of the rainbow. So we need a rainbow. Rainbows have red, right? There’s some red. And it has some orange; there’s some orange. And it has what other colors? Yellow, okay. Green? Okay. And then blue. And then purple. There it is. N...
[Students make suggestions] (THERE ARE NO WRONG ANSWERS! Whatever they say, you should reply: “That’s a good idea,” “They might do that,” etc. After brainstorming, proceed with the experi-ments, then finish the story.) We’ll leave this To Be Continued . . .
Now we can do some experiments. [Stands next to aquarium tank, which has a slab of dry ice inside.] Okay, I’m going to blow into it and see what it does. [Blows into tank, and the fog coming off the slab increases a bit.] What was that stuff coming out of my mouth? Doesn’t it look like fog in there? Well there’s water vapor in your breath when you ...
Why did Jack die? Oh, watch that flame. You see what that flame did? The candle flame goes out as it’s lowered into the aquarium. You’re right, there was no oxygen down there. [Lights a cigarette lighter and lowers it into the tank.] Here he goes -- aaaaah! See, the flame got shorter and shorter and shorter? The carbon dioxide must be about here be...
Well, we want to see that a little bit differently. We’re going to add some clouds. We’ll put some dry ice in a cup and we’re going to hold it here [just below the rim]. And we’re going to pour hot water on the dry ice. If I blow into it, do you remem-ber what happened when I blew into the tank? Watch now. [Blows into the cup of dry ice, and fog fo...
But first, we’re going to put some dry ice into this squeezy bottle. [Puts pieces of dry ice into the bottle and replaces the lid, which has a long narrow spout on it.] And I’m going to put a balloon on top of the jar. [Attaches an uninflated balloon to the opening of the spout with a rubber band.] This is the lid of the jar and it’s got a tube wit...
it close to the balloon, making it pop.] Carbon dioxide inflates the balloon. [Fog continues to rush out through the spout.] What’s that stuff that’s coming out? [Lets students feel the cold blast.] That’s what happened with Mister B.’s freezer. The dry ice made it explode. Nowadays they make freezers with no latches on them. They can’t blow up. Ex...
Aluminum bar makes a screeching sound when it touches dry ice. A few drops of dish soap makes the dry ice blow bubbles. slow down, Instructor drops another chunk of dry ice into each cup. Then Instructor then uses an infrared thermometer to check the tem-perature of each cup. Most of them are 37 degrees.] How much dry ice is it going to take befo...
Film cans with dry ice inside. [Eventually, the dry ice chunks in the students’ cups form shells of water ice around them, and the Instructor takes them out of the cups, one at a time.] Now we have an Easter egg here. It’s really slippery. When you add soap to ice, talk about slippery! Now, we’re going to break your Eas-ter egg and see what’s insid...
* DO NOT * present this part of the lesson until after the experiments! So the leprechauns didn’t have any fog to hide them during their leprechaun olympics. And they called Jack and Jill. Evil Mister Fred was always flying around on his vacuum cleaner, trying to catch one so he could get the pot of gold. And Jack and Jill said, “We’ve got to do so...
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Dry Ice is solid carbon dioxide. You can buy slabs or pellets of dry ice for less than $1 per pound. Look in your Yellow Pages under dry ice. Be sure you • wear gloves (surface temperature is -109o F), • open your car windows (you need oxygen to breathe), and • don’t lock your cooler closed (dry ice sublimes rapidly to make large
Apr 15, 2023 · Solid carbon dioxide is called dry ice because it does not pass through the liquid phase. Instead, it goes directly to the gas phase. (Carbon dioxide can exist as liquid but only under high pressure.) Dry ice has many practical uses, including the long-term preservation of medical samples. Even at temperatures below 0°C, solid H 2 O will ...
How much dry ice will I need? The quantity of dry ice you will need to maintain temperature in a storage freezer or refrigerator will vary. Some basic tips for using dry ice to cool foods are: In a Refrigerator: A home-style refrigerator may use about 10 pounds of dry ice per day. Dry ice may freeze items, so place foods that may become damaged by
Apr 18, 2024 · We understand the diverse dry ice applications and offer tailored solutions for each sector we serve. Best of all, we comply with the rigorous standards set by the U.S. Food and Drug Administration to deliver safety and quality in each of our dry ice products. Explore the possibilities with Emory Dry Ice today.
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What is dry ice?
puddle ice fog clouds sleet snowflakes freezing rain 3. At what temperatures do changes of state happen? Different substances have different temperatures at which these changes occur. Water: The temperature where a substance changes from a solid to a liquid (or a liquid to a solid):
