In a high school laboratory, which of the following constitutes an experiment?
I.learning to use a microscope by examining fixed specimens on slides
II.being able to examine swimming protists under a microscope
III.extracting pigments from plant leaves and separating the types of pigments for identification
IV.preparing root tips for examination by staining them
A) I only
B) II only
C) III only
D) II and III only
E) II, III, and IV

Question

Quizplus · Accepted Answer

Only III constitutes an experiment as it involves manipulating and controlling variables to extract and separate pigments from plant leaves for identification. I, II, and IV are laboratory activities or techniques that do not involve manipulation of variables or testing of hypotheses.

In a High School Laboratory, Which of the Following Constitutes