Maya observes that adding sodium hydroxide to a clear liquid causes the liquid to turn pink. She hypothesizes that the sodium in the sodium hydroxide caused the color change. She tests her hypothesis by adding six other solutions that contain sodium to the liquid. The liquid does not change color. What is the best thing for Maya to do next?

Question

anonymous · Answer

Modify her hypothesis, and design new experiments to test it.
Reject her hypothesis, and assume that her original observation was incorrect.
Continue to test additional solutions that contain sodium.
Try adding other liquids to the solution until it turns pink.