Question

read this scenario: \sam wanted to test if music helps plants grow. he put one plant in the sunlight with music, and the other in a dark closet with no music. after two weeks, the plant with music grew taller.\ question: what mistake did sam make in his experiment? how could he fix it?

Explanation:

Sam had multiple variables. He changed both light exposure and presence of music. To test music's effect on plant growth, only music should vary while other factors like light remain constant.

Answer:

Mistake: There were multiple independent variables (light and music), making it impossible to determine if music or light caused the growth difference. Fix: Keep both plants in the same light - conditions, and only vary the presence of music.