8/14/2019 The Better Battery

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THE BETTER BATTERY

PROBLEM:

Which brand of battery lasts longer?

HYPOTHESIS:

I think that if we use the Eveready battery brand then it will last longer.

Experimental DesignCONTROLLED VARIABLES:

amount of energy a battery containsappliances used

state and condition of the appliances used

MANIPULATED VARIABLE:

brand of battery

RESPONDING VARIABLE:

amount of time a battery lasts

MATERIALS:

2 flashlights

2 radios4 AA Eveready batteries

4 AA Energizer batteries

PROCEDURE:

1. Label one flashlight as Eveready and the other as Energizer. Repeat the

instructions with the radios.2. Turn on the flashlights simultaneously and then wait for each to die out. This may

take a while. Record the results.3. Repeat Step # 2 with the radios. Record the results

4. Tabulate your results