Chemistry in a Bag.

What You Need For This Lab:
Calcium Chloride
Sodium Bicarbonate
Phenol Red - (be careful, does stain)
A Sandwich Bag
Pipit
Water

Experiment 1: we mixed calcium chloride, sodium bicarbonate, and phenol red all together into a bag. We put all of the dry items into one corner and than put all the liquid items into the other corner. After you do that, you seal the bag, and shake it. as you do this you want to observe what is going on in the bag.

Experiment 2: we mixed phenol red, water, and calcium chloride together into a bag. we followed the same steps as in experiment 1.

Experiment 3: we mixed phenol red, water and sodium bicarbonate together into a bag. we followed the same steps as we did in experiment 1 and experiment 2.

Post-Lab Questions-
1) I believe that the Phenol Red and Calcium Chloride caused the heat.

2) Yes, in one experiment (Phenol Red and Sodium Bicarbonate) the bag turned cold.

3) In the overall reaction it turned yellow and than to orange. I don't really think that the controlled experiments prove anything about the color changes we got.

4) No, Our experiment didn't do that. Ours first turned colors, and the heat came.

5) We put the two non-liquid items together, and nothing happened. Yes, the Phenol Red still does things to the Sodium Bicarbonate and Calcium Chloride.

6) All of the items we used (expect Phenol Red) is needed to produce gas.

7) I would suggest adding something different to the experiment.

8) A temperature change does indicate a chemical change, because you had to put chemicals together to get that temperature change.