Molina,+C.

Problem Statement:
Which battery last the longest?

Hypothesis:
If I experiment which AAA-battery last the longest I hypothesize that brand Duracell will last the longest of the brands of battery Energizer, Panasonic, and Rayovac.

Tittle:
battery life

**procedures:**
I tested each flashlight by using two extra test batteries.Then I labled each flashlight with the kind of battery brand it has inside, and then i put the kind of brand of battery inside the labled flashlights, the way that i did it was I got three volunteers too put the battery at the same time and turn on he flashlight at the same time to we turned all flashlights at 7:00A.M.Then every two hours i checked if the batteries were still on.And for this project i used AAA-batteries.

Materials:
1.) four of the same type ,size, and brand flashlight. 2.) 12 AAA-batteries;plus the 3 test batterys

Variables:
The different brand of battery. which brand and size of battery best increases the life of the battery. Same brand of flashlight, same time turn on all flashlight, and same size of battery AAA- battery.
 * Independent variable:**
 * dependent variable:**
 * controlled variable:**
 * DATA:**

RESULTS: My hypothesis was incorrect Duracell was not the brand of battery that lasted the longest actually the brand of battery that lasted the longest was Rayrovac in all three trails.

CONCLUSION: My hypothesis was incorrect. Rayovac was the battery that lasted the longest in all three trails but I hypothesize that Duracell was the one that would last the longest my hypothesis was denied L .I recommend that more studies have been made because unfortunately some flashlights have been dropped, and two were already used hopefully that didn’t affect the results.

Application: My experiment will help others by when they need a excellent long lasting battery they now what brand of battery to buy ,Rayovac .I mean what kind of person doesn’t want to buy the best for them self, why waste money on some not that long lasting batteries when you could buy Rayovac?


 * EXPERIMENT#2 **

How can a batteries power be incresed?
 * PROBLEM STATEMENT: **

If i put three AAA- batteries in the fridge i think that will increase the power the most instead of in a cup of sand, and on a counter in room temperature. Battery life First I went to the park and got a cup full of dry sand, then I put the three AAA-batteries inside of the cup of sand, and the three batteries into the fridge, and on my counter in room temperature.I waited five hours and then put the first three pair the was in the sand into the first flashlight labled sand, then I got the other three that were in the fridge and put those into the one labled fridge, lastly I took the ones that were in room temperature and put them into the one that said room temperature.I turned them all at 7:00a.m and then every two hours I went to go check on the flashlights to see if they were on or if they turned off. 1.) 9 AAA- Duracell batteries. 2.)3 of the same brand flashlights 3.) a cup of sand INDEPENDENT VARIABLE:  the settings that I put the batteries in, and the amount of time they were turned on.  DEPENDENT VARIABLE:  In which setting does the batter gain the most power  CONTROLLED VARIABLE:  the amount of time the batteries stayed in there setting, the brand of the battery, same brand of flashlight, same size of battery,  and same time turned on all flashlights.
 * Hypothesis: **
 * Tittle: **
 * Procedures: **
 * MATERIAL: **
 * Variables: **


 * DATA: **

My hypothesis was correct the batteries did gain power the most in the fridge.The ones in room temperature were second and the one that were in a cup of sand they had the least amount of power. My hypothsis was correct. YAY! : ) The batteries that were in the fridge lasted the longest and gained the most in all three trails. I recomend that more studies have been made because during the process of this experiment some flashlights were dropped and one of the flashlights have been used. My experiment will help others by when people buy the cheapest batteries that dont last that long the can save money by sticking them into the fridge instead of buying some really expensive ones that last almost the same as the ones stuck in the fridge and cheap.What kind of person doesnt want to save money?
 * results: **
 * CONCLUSION: **
 * APLICATIONS: **

In which electronic do batteries last the longest? I think that the AAA- batteries will last the longest in an CD player instead of in a remote control, and in a flashligh Battery Life First I got three AAA-batteries ( Duracell ) and put them into the CD player, then I got another three batteries and put them inside the remote control last I got three more batteries and put them into the flashlight then I turn all of then on at 7:00A.M, and then every two hours I went to check if they were still working. 1.) CD player 2.) remote control 3.)flashlight 4.)9 AAA-duraell batteries 5.)headphones to hear if the CD player is still working. INDEPENDENT VARIABLE:  The electronics one is CD player other is remote, and other is flashlight!  DEPENDENT VARIABLE:  In which electronic do batteries last the longest.  CONTROLLED VARIABLE:  I turned all of them at the same time, Im useing the same size of battery, same brand of battery,keep all of them on my counter,and check on all of them every two hours.
 * EXPERIMENT#3 **
 * problem statement: **
 * Hypothesis: **
 * Tittle: **
 * procedures: **
 * Material: **
 * VARIABLES: **


 * DATA: **

My hypothesis was incorrect. I hypothesized that the CD player was going to last the longest but accually it didnt the remote control did and the flashlight came in second place. In the electronic remote batteries last longer in there. My hypothesis was incorrect.The remote control is the one that lasted the longest in all three trails.I recomend that more studies have been made because the flashlight was accidently dropped and the CD player was old. My experiment will help other people because now with my experiment people will now know when to buy new batteries for there favorite electronics.
 * RESULTS: **
 * Conclusion: **
 * APLICATION: **