Hartnell College Computer Science and Information Technology

Hartnell College Biology Tutorials

Scientific Method Quiz

1. A scientist testing the affects of a chemical on lettuce yield sprays a field with the chemical. A second field does not receive the chemical. The amount of lettuce harvested from each field is measured. Which of the following is the independent variable in the experiment?

A. the chemical
B. the first field
C. the second field
D. the amount of lettuce harvested