Chemistry in a Bag!!!

We used:



Phenol Red- stains easily, low viscosity, used 1 pipet



Baking soda- looks similar to flour, used 1 scoop



Sodium Bicarbonate- resembles dippin dots, used 1 scoop



Water- used 1 pipet


What Happened:


We mixed all of these substances together in a ziploc baggie and shook the bag. While we were shaking the bag was inflating. There were two temperature changes. As we were shaking it was getting hotter and slowly began getting colder. When the bag was totally inflated we unzipped the bag and the smell of the bag was similar to the smell of rubbing alcohol or peroxide.

1. phenol red and calcium chloride


2. yes when we mixed phenol red and calcium chloride


3. it turned red then yellow


4. when we shook the bag and when it had baking soda it made gas bubbles


5. there is no reaction without the water


6. calcium chloride phenol red and baking soda