Question

Question 7
Imagine a scientist is conducting an experiment on the effects of acid on weathering rocks. In this experiment, there
are three different samples of identical rock pieces. The scientist does not add anything to the first sample. The
scientist adds 5 drops of acid the second rock and 10 drops of acid to the third rock. What is the dependent
variable?
a. Amount of weatering
b. Amount of Acid
C. Amount of rain
d. Number of Rocks

Answer 1

Answer:

a. Amount of weathering

Explanation:

In this experimental setup, the amount of weathering is the dependent variable. It is that variable that depends on the action of another.

• The dependent variable usually surfaces as the one being tested for.
• The independent variable does not rely on anything. It is usually the cause of the phenomenon observed in the experimental procedure.

In this case, the amount of acid is the independent variable.

The dependent variable is the amount of weathering.