litmus paper

 hi  guys today i am going to be telling you about what i have been doing in  science class today  here is what i have been 

1 red litmus paper 

2 blue litmus paper 

3 sodium Hydorxide 

4  hydrochloic acid 

5 Pipette 

6. 4 test tubes 

1. Rip the litmus paper in half and put half in each test tubes.

2. Add 3 drops hydrochloic acid to the blue litmus paper in test tube 1. 

3.  Add 3 drops hydrochloic acid to the red  litmus paper in test tube 2.. 

4. Add 3 drops hydrochloic acid to the blue  litmus paper in test tube  3.

5. Add 3 drops hydrochloic acid to the red  litmus paper in test tube 4.