Question

Two students are working together on an experiment that measures the effect of different liquid fertilizers on the thickness of plants’ stems. Which is most likely to result in the greatest amount of error in their scientific experiment?
One student measures the plant stem widths by using calipers. The other student measures the widths of the same plant stems again by using a different pair of calipers.

One student measures the plant stem widths by using calipers. The other student types the measurements as they are taken into a computer spreadsheet.

One student measures liquids for the experiment by holding the flask up at eye level. The other student measures liquids for the experiment while the flask sits on the table.

One student weighs liquids for the experiment by using a calibrated scale. The other student weighs liquids for the experiment by using a different calibrated scale.

Answer 1

I would say the greatest amount of error is introduced by eyeballing the flask at two different levels. You're supposed to measure liquids at eye level. The angle viewing downward could be off by a good amount

Answer 2

I'm pretty sure the answer is C.