Question

A student conducted an experiment that used two rose plants to determine if a liquid formula for fertilizer was better than a dry
formula. He tested each fertilizer on a single plant for one month, and he concluded that the liquid formula was better. When
he described his conclusion to his teacher, she told him he needed to conduct additional trials. The teacher most likely asked
for additional trials because
she did not believe the new formula helped plants grow better than the old formula.
it was necessary to see data from more plants before the conclusion could be accepted.
it was necessary to have tested the fertilizer on different kinds of plants.
she thought he should test additional fertilizer formulas on the same two plants.

Answer 1

The teacher most likely asked for additional trials because it was necessary to see data from more plants before the conclusion could be accepted.

Explanation:

• Any experiment should have multiple trials given so that accuracy of the result could be obtained.
• Repeating same experiments tests the consistency of a particular result and makes sure that the results will not be effected by random events occurring within the system or surrounding.
• Thus the conclusion becomes more precise and accurate.