Dry Ice Experiments with Bubbles

One of the easiest and most impressive dry ice experiments is the dry ice bubble experiment. Kids love seeing the giant smoking bubble monster grow and grow, and can safely touch and play with the bubbles. It’s a great sensory activity!

Dry ice bubble experiment

SCIENCE EXPERIMENTS

A few weeks ago we got a package of kosher beef briskets for a client video shoot. In the bottom of the box was a big bag of dry ice.

As soon as Eric and I saw the pieces of dry ice, we basically turned into mad scientists and started planning a science experiment. This was not a planned blog post, and photographed late at night in low light. But it was so fun I had to share.

Toddler holding dry ice bubbles

Science experiments were one of my favorite childhood activities, and really got me excited about chemistry and biology (until high school ruined it for me but that’s a story for another time).

Whether it’s a simple baking soda art project, or making ice cream in a bag, even toddlers can fall in love with the wonders of science.

DRY ICE EXPERIMENTS FOR KIDS

Some of you may be thinking I am absolutely crazy for letting my toddler and preschooler play with dry ice.

Toddler blowing on dry ice

But if you trust your kids to believe you when you tell them that touching the ice is dangerous, and that dry ice can NEVER EVER go in their mouth, you should be good to go. Just make sure to provide adult supervision.

For safety we had oven mitts to handle the dry ice, as well as tongs to drop it into our glass bottle.

DRY ICE SCIENCE

Dry ice is frozen carbon dioxide gas, and changes directly from a solid to a gas. This process is called sublimation.

dry ice sublimation

The fog you see when dry ice is put into liquid is from the carbon dioxide gas and water vapor.

In this dry ice experiment, the ice is dropped into soapy water.

When the dry ice sublimates, the carbon dioxide and water become trapped inside the soap film bubbles. When you pop the bubbles, you release the “fog”.

dry ice bubbles

HOW TO DO THE DRY ICE BUBBLE EXPERIMENT

Using thick oven mitts or leather gloves, place a few pieces of dry ice in a bowl before you get started.

dry ice experiments supplies

You will also need a tall glass jar or vase (the skinnier it is the more dramatic the “bubble monster” effect), warm water, dish soap, and tongs. Food coloring is optional.

Fill a glass jar halfway with warm water and add a few drops of food coloring if desired.

adding dry ice with tongs for a dry ice experiment

Use the tongs to drop a chunk of dry ice into the warm water.

adding dish soap to dry ice

Add a squirt of dish soap to the water.

dry ice bubble experiment

Watch the bubbles build up and start pouring out of your jar! The bubbles are safe to touch and play with.

TIPS FOR DRY ICE EXPERIMENTS

You want to use warm water for your dry ice experiments. Notice that as the water cools off, less gas is produced. We simply poured out the water (leaving the dry ice) and added more warm water and soap.

kids touching dry ice bubbles

We added blue food coloring to match the fun blue of our Dawn dish soap, but you don’t need to color the water.

Make sure to let your kids explore the different stages of the experiment. Start with them blowing slowly on the dry ice in the bowl to form “fog”. My kids called it “dragon breath”! Then let them see how it bubbles into gas in the water before adding the soap.

kids watching dry ice sublimation

SAFETY TIPS!

As stated before, always use very thick gloves like oven mitts or leather gloves to handle dry ice. Or use tongs. Do not touch the dry ice directly!

Dry ice is poisonous if inhaled in large quantities. This experiment only used a couple piece of dry ice so it was not an issue. But make sure you are in a well ventilated area. If you have lots of extra dry ice to melt, put it outside.

WHERE TO BUY DRY ICE

Not sure where to find dry ice? Try calling your local grocery stores like Safeway, Walmart, Albertsons. Many of them carry dry ice.

SAVE THIS DRY ICE EXPERIMENT ON PINTEREST!

You can pin the dry ice experiments here so you don’t lose this post. And if you give it a try, we’d love to have you leave a photo on the pin!

Dry Ice Experiments

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