Science with Sarah: Simple Experiments for Understanding Complex Phenomena

Sarah’s Science Experiments with Dry Ice

Sarah Spivey, a Meteorologist with KSAT, is excited to share her love for science with students and educators alike. Science with Sarah is a partnership with the San Antonio Zoo and features live demonstrations and explanations of scientific phenomena on GMSA@9 on Wednesdays. To get started, here are the materials you’ll need for the experiments:

* Dry ice (always handle dry ice with gloves)

* DRY ICE BIG BUBBLE: large bowl, dish soap/water mixture, water, shoe lace or strip of cloth

* EXTINGUISHING CANDLE: Tea light, match, Tupperware or small bowl

* DRY ICE “INSTRUMENT”: cups/containers of different sizes/shapes, water, soap


To conduct the experiments:

1. For the DRY ICE BIG BUBBLE experiment, fill a large bowl with water and add a little dry ice. Dip a shoe lace or strip of cloth in soapy water and drag it across the bowl to seal it with soapy water. You should see a big bubble form filled with vapor from the dry ice.

2. For the EXTINGUISHING CANDLE experiment, place a tea light inside of a Tupperware or small bowl and light it up. Place some dry ice around the candle and watch as it slowly extinguishes.

3. For the DRY ICE “INSTRUMENT” experiment, place a small piece of dry ice on a table in front of you and use a spoon to press down on it. It should make a silly sound!

4. For the BILLIONS OF BUBBLES experiment

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