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
A
The independent variable is the number of dry cells, and the dependent variable is the length of time the bulb works.
B
The independent variable is the length of time the bulb works, and the dependent variable is the number of dry cells.
C
The independent variable is the number of dry cells, and the dependent variable is the amount of energy available.
D
The independent variable is the amount of energy available, and the dependent variable is the number of dry cells.