Question

In a lesson about the behavior of gases, Genaris and her classmates learn that the volume of a gas is affected by its temperature. They formulated a hypothesis: If the temperature of a gas increases, the volume of the gas will increase because the increased temperature will increase the kinetic energy of the particles, which will then result in the expansion of the gas. The results of their experiment supported the hypothesis. They wanted to know if there were other factors that affect the volume of a gas.

What would Genaris and her classmates most likely do to test this idea?

They would formulate a new hypothesis with the same independent variable but a different dependent variable as the original hypothesis.
They would formulate a new hypothesis with the same dependent variable but a different independent variable as the original hypothesis.
They would formulate a new hypothesis with a different independent and dependent variable as the original hypothesis.
They would formulate a new hypothesis that has the independent and dependent variables of the original hypothesis switched.

Answer 1

They would formulate a new hypothesis with the same dependent variable but a different independent variable as the original hypothesis.

Reason: To test other factors that affect gas volume, they should keep volume as the thing measured (dependent variable) and change a different independent variable (for example pressure or amount of gas).