Question

Omar wrote a hypothesis about batteries called dry cells. if more dry cells are connected end to end, a light bulb will work longer because there is more energy available. what are the variables in his hypothesis?

Answer 1

A-- The independent variable is the number of dry cells, and the dependent variable is the length of time the bulb works.

Step-by-step explanation:

Answer 2

Answer;

The independent variable is the number of dry cells, and

The dependent variable is the length of time the bulb works.

Explanation;

• The main variables in a given experiment are the dependent variable and independent variable.
• An independent variable is the variable that is changed or controlled in a scientific experiment. Its purpose is to determine the effects of dependent variable.
• Dependent variable is the variable that is being tested and measure in a scientific experiment.
• in this case, the independent variable is the number of dry cells , while the dependent variable is the length of time the bulb works.