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# What are the variables in a lemon battery experiment?

## What are the variables in a lemon battery experiment?

Variables. Independent Variable is the amount of lemons used. Dependent variable is the lightbulb being lit. The control variable is the lightbulb itself.

## Is battery an independent variable?

Independent Variable: The battery type that was used (Duracell, Energizer, *An independent variable is something that will change (the type of battery used) A dependent variable is something that changes only because of the independent variable (the amount of time the flashlight lasts).

What are controlled variables give an example?

Examples of Controlled Variables Temperature is a much common type of controlled variable. Because if the temperature is held constant during an experiment, it is controlled. Some other examples of controlled variables could be the amount of light or constant humidity or duration of an experiment etc.

What is the independent variable in a potato battery experiment?

Independent variable is the type of potato. (Possible values are Russet also known as Idaho Potato, Red Bliss Potato, Desiree, Makoikoi, Urenika, …) Dependent variable is the electrical power.

### What is the science behind a lemon battery?

The lemon battery works through an electro-chemical reaction when it is connected to a complete circuit. The citric acid in the lemon acts as an electrolyte, a solution that conducts electricity. These electrons flow out the wire, through the circuit and re-enter the lemon through the copper penny.

### How many volts does a lemon produce?

A single lemon produces about 7/10 of a volt of electricity. If you connected two lemons together, you can power an inexpensive digital watch (uses about 1.5 volts). (Use a length of thin, flexible wire to connect the silver wire of one lemon to the copper wire of the other lemon.

Is current an independent variable?

Since the voltage is the variable which we are directly varying, it is the independent variable and will be plotted on the x-axis. The current is the dependent variable and must be plotted on the y-axis.

Which brand of battery lasts the longest independent variable?

The Duracell battery lasts the longest, closely followed by Energizer and then Eveready. In general, the alkaline batteries are found to perform better than their non-alkaline counterparts.

#### How do you increase the current of a potato battery?

Boiling a potato for eight minutes actually increases its electrical capacity. Boiling ruptures the cell membranes inside the potatoes and enhances the electrolytes by making more ions available. They found that boiling increases the electric flow by a factor of 10, which is a significant difference.

#### How do you identify independent dependent and control variables?

Identify the variables

1. Independent variable – the variable that is altered during a scientific experiment.
2. Dependent variable – the variable being tested or measured during a scientific experiment.
3. Controlled variable – a variable that is kept the same during a scientific experiment.

Which is the dependent variable in a fruit battery experiment?

The dependent variable is what changes in response to variations in the independent variable. In fruit battery experiments, the dependent variable is usually a voltage. Controlled variables are the things that you keep the same in all of your experiments.

When does the fruit battery experiment come out?