In this lab, 8 different common household "chemicals" (various juices and cleaners) are tested to determine:
-Are they an acid or a base?
-How strong are they relative to one another?
Students will use litmus paper to do their initial test, then PT indicator (phenolphthalein) in conjunction with an acid or base (whichever is appropriate) to neutralize the sample, determining how strong it is.
I've done this lab successfully with my 7th grade classes for years, but it would also work well in a freshman science class, or even as a basic chemistry lab.
This includes teacher prep instructions for the chemicals, some basic how-to for running the lab, directions, and lab worksheet.
I also have a supplemental lab video that has me explaining the basics of how to test whether something is an acid or a base, the basics of determining relative strength via neutralization, and also has me walking through the lab.
This video can be used for teacher prep, lab make-up, or for TAG/GATE students.