Drug Test Lab

In this lab we used certain reagents that can prove if a drug is LSD, Cocaine or Meth. When we started the lab the meth reagent was not yet produced do we could only test LSD or Cocaine. We put the crushed substance into water and mixing until it is completely dissolveddropping a little on a peachtree dish and adding a few drops of the reagent. If the reagent turns blue the drug is cocaine and if it turns yellow it is LSD while also testing the Ph of the drug. This is what our data was:

Drug	LSD	Cocaine	Meth	Ph
1	Negative	Positive	Not Tested	6
2	Negative	Positive	Not Tested	9
3	Positive	Negative	Not Tested	3
4	Negative	Positive	Not Tested	8
5	Negative	Positive	Not Tested	6
6	Positive	Negative	Not Tested	3 ½