DOES THE RESULTS OF EVERY SCIENTIFIC EXPERIMENT NEED TO BE QUANTITATIVE?
No, scientific experiments are not always quantitative. But it depends on how you use the word ‘experiment’. Experiments were invented to check if a prediction was right or not, but the measure does not need to be quantitative. True experiments were invented to check predictions using quantitative measures (and results) which they can analyze numerically. The advantage is that it is easier to determine causes in the experiment. In the old days, the meaning of the word experiment was far simpler. Doing an experiment just indicated that the researcher was doing something actively to evoke a phenomenon and then study it. The Ben Franklin Kite Experiment did not have quantitative results (at first). Ben Franklin simply made a Kite Dragon and put it into the air during lightning to see whether it would generate electricity when hit.
