4. Discussion

4.1 Key findingsThat the best source for showing the decomposition of bread is the no light with 5ml of water.

4.2 Explanation of key findings
UV light attracted the maggots and flies, however when they got close enough, they actually killed off the maggots when they were too close to the UV light. However in LED light, the mould in the airtight and the maggots in the open air allowed lots of ways for decomposition to happen thus LED light with 5 ml water is the most useful. LED doesn’t kill the maggots while they are climbing up to eat it. However it’s extended effect of having light over the wave length of 500 allowed the maggots to slowly die at the very end. We say this because of

 Good thing, as long exposure to intense light can kill a baby fruit fly.

 Light-phobic fruit fly larvae have primitive eye structures called Bolwig's organs that alert them to brightness. But researchers at the University of California, San Francisco, noticed that cells in the fruit fly's body seemed to respond to light as well. Even stranger, fruit fly larvae genetically engineered to have nonfunctional Bolwig's organs writhed away when researchers shone light on them. 
 (citation to be inserted here: http://www.livescience.com/11188-maggot-bodies-sense-bright-light.html)

However after all this, you may ask why did we not actually check the set-up daily, it's actually due to a simple of reason of bread containing preservatives. We thought that it would take at least a day for the preservatives to run out. So, we instead checked it after our time stamp was over. 
We knew that there were preservatives in bread from:  


Perpectuated falsehood 1: Gardenia bread does not get mouldy because of the high amount of preservatives added.


The Truth: Calcium propionate is the common preservative used by bakeries worldwide. The allowable usage amount is different from country to country. In Malaysia, the permitted amount is 2,000 parts per million (ppl).

Citation to be inserted here: http://www.gardenia.com.my/truth.html

4.3 Evaluation of hypothesis
Our hypothesis is wrong as it turns out that while UV did prevent mould from growing in most cases,the lights might have attracted the insects to each of the set-ups.This is probably due to the wavelength and colour of the light. Flies that were attracted to the setup have laid eggs there such that maggots grew. Due to certain setups that had not  grown mould yet and were incomparable, we had to extend the experiment and when we did,it was long enough such that the maggots were able to turn into flies.

4.4 Areas for improvement
Areas for improvement to prove our hypothesis correct

We could have put a cling wrap on our set-up to prevent the maggots from growing and affecting our results of measuring mould

We could have used wire tape to do wiring. We originally used glue gun, however, that slowed us down a lot as we were unable to make connections when it was glued

We could have gotten a waterproof styrofoam that doesn't absorb water. So that we would be able to pour water into it

We could have gotten spare LEDs and UVs. They broke on the day we wanted to start the experiment. However, we didnt have any spare. Thus having to delay the experiment till the next week before doing.

To have kept the set-up in our houses than the locker so that we would be sure of what forms of insects could get in.

During the making of the set-up some of the glue was not glued properly, thus when the glue setted. It started chipping away. We could have used more care to glue it together.
We could have collected several of the samples of dead maggots and see how big they grown to see if they are born since the start of the experiment

We could have gotten other types of bread to see if maggots grew on them. If it did, we could conclude that maggots is one of the main factors of decomposition

Also we could have checked the set-up daily.

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