A group of students decides to investigate weather adding crushed eggshells to soil will affect the pH level of the soil. The students add diffrent amounts of eggshells to the soil. They test the pH level of each soil sample but then realize that they have forgotten to record the mass of the eggshells they added to each sample. Why is it important for the students to repeat this experiment?

Question

A.to record accurate data
B.to form a new hypothesis
C.to rewrite the procedures
D.to test a different question

Answer 1

Your answer?

Answer 2

Yes, a.