1. When the probe strip is pulled along the surface of the unprinted side of the magnet, differences in force can be felt as the strip makes small up and down
motions.

Ateacher gives students four liquids commonly found in the kitchen - vinegar, apple juice, dish detergent, and milk - and ph indicator strips, which measure acidity. the teacher asks the students to put the liquids in order from most acidic to most basic. what type of investigation could the students conduct to determine the correct order for the liquids?