surprise in a bag

When doing surprise in a bag i was the recorder of the lab. My partner Mackenzie shook the bag to see and feel the reactions. She felt warmth and cold and we witnessed the pressure of the bag increasing as the chemicals of the bag were mixing. The chemicals that we used were calcium chloride, sodium bicarbonate (baking soda), and phenol red. The hazards of these chemicals is that phenol red can stain if it got on cloths, calcium chloride is irritant (would dry and irritate or skin). Our first test was with our two liquids, phenol red and water. When the two liquids were mixed together the only chemical reaction that occurred was the color changing to pink. Our next test was with calcium chloride and phenol red. The chemical reaction that occurred was the warmth of the bag increased and the smell that came from it was similar to rubbing alcohol. Our third test was phenol red, baking soda, and calcium chloride. The results of the test was the it got a little warm, it turned yellow, the pressure of the bag increased, and the smell was still similar to rubbing alcohol.We then tested water with calcium chloride and the results of that was the heat in the bag increased. Then we tested baking soda and water, the chemical reaction that occurred was the bag went cold. Our finally test was water, calcium chloride, and baking soda the results were the bag did get a little warm, the pressure increased, but there was no smell that came from the test.
1. The chemicals that made the temperature go up was calcium chloride mixing with either liquid.
2. There was a temperature change when me and my partner mixed baking soda with water and calcium chloride with either liquid. We discovered that when baking soda was mixed calcium chloride and phenol red that the heat didn't get as hot as when calcium chloride did with just water. We figured that it was either the two powders chemical compound caused the temperature to balance out.
3. The color change we observed was yellow and the only color change we observed with the controlled experiments was with phenol red and water mixing.
4. Yes we did notice that when the temperature increased or decreased or when the color changed we saw gas bubbles forming and we figured that when the gas was building up and the chemicals were mixing that the reactions were caused of this.
5. Baking soda with water and phenol red and calcium chloride with water and phenol red and there were no changes in temperature when water was not in the experiments.
6. When the to powders are mixed together with the liquids it creates a sort of solid liquid type substance. The chemicals that are responsible for this could be either liquid mixing with either powder substance.
7. Water mixing with calcium chloride
8. A temperature does always indicate a chemical reaction, because when the temperature increases or decreases that means the substances are reacting to each other.