Question

logan noticed that some of the footballs his team used during practice were not fully inflated. he wondered whether fully inflated footballs would travel farther than footballs with a lower air pressure. to find out, logan collected 20 standard footballs. he fully inflated ten of them to an air pressure of 13 pounds per square inch. he inflated the remaining ten to an air pressure of 10 pounds per square inch. logan used a football launcher to launch a ball across a football field. he measured the distance the football traveled and then launched the next ball. logan repeated this with all 20 balls. complete the sentence. in this experiment, the air pressure in the footballs was _. a dependent variable an independent variable

Explanation:

The independent variable is the factor that is deliberately changed or manipulated in an experiment. Here, Logan deliberately set two different air - pressure levels in the footballs. The distance the football travels is likely the dependent variable which may change based on the air pressure. So the air pressure is the independent variable.

Answer:

an independent variable