finger in mouldy coke

another bit...the results! it was kind of gross searching for the contact lens in the mouldy liquids.

dying mentally

finishing touches...uploading some photos as well :)

collecting data

well to be accurate. I've finish collecting data by now, it's mainly up to the writing report section. So since the last time I blogged, I have sinced the first round of my experiment. I have since then conducted a second round just to make sure the results are correct.
Anyways it seems
1. coke is the quickest to be discontinured due to alteration in physical appearance of the contact lense after 3 days
2. orange juice is the quickest to change also, however this is in the appearance of the juice. Despite the false alarm, it quickly follows the coke in the path of being discontinued.
3. the dish detergent solified in around 4 days, therefore preserving the contact
4. the vinegar also "survived", with no alteration in physical appearance of contact. However the liquid started to evaporate near the end of the experiement.

end

better get typing :)

starting to self-destructed

1.Orange juice is attracting unwanted interruption from insects and bugs. Also developed a 'skin' layer of white on top of the liquid
2. my 'coke' contact test has be stopped and not recorded because it showed signs of erosion within a week
3. my dish detergent is hardening to a slight solid and blue-ish aqua substance.
4. reminding myself to get some more photos up

some photos

just uploading some long awaited photos about my experiment. yes everything is going well, thanks for asking :)
[to no one in particular]

my 2nd post reposted METHOD

material needed: four 1. Day Acuvue moist brand soft contacts, four beakers(glass cups), thermometer, measuring cylinder(measuring cups), liquids;coke,dish detergent, orange juice, white cooking vinegar

my METHOD is
1) Obtain 4 already sterilized soft contacts of the 1. Day Acuvue moist brand and other equipment
2) Measure and record he thickness and diameters for the contacts
3) Place contacts into separate 'beakers' (glass cups) which are containing 100 mL of different liquids; coke, dish detergent,orange juice and white cooking vinegar.
4) Leave the contact to rest in the liquid at room approximate temperature(25 degrees Celsius)and a dim and dry environment.
5) Observe for signs of erosion and moulding. Any liquid or contact showing signs of erosion will be recorded but discontinued.
6) Experiment will be stopped after a two week period and all results and observations will be recorded.
7) Experiment will be repeated at least two more time to make sure results are valid and if there is a possible trend.

moi deuxieme post aka 2nd post

my METHOD is
1) Obtain 4 already sterilized soft contacts of the 1. Day Acuvue moist brand and other equipment
2) Measure and record he thickness and diameters for the contacts
3) Place contacts into separate 'beakers' (glass cups) which are containing 100 mL of different liquids; coke, dish detergent,orange juice and white cooking vinegar.
4) Leave the contact to rest in the liquid at room approximate temperature(25 degrees Celsius)and a dim and dry environment.
5) Observe for signs of erosion and moulding. Any liquid or contact showing signs of erosion will be recorded but discontinued.
6) Experiment will be stopped after a two week period and all results and observations will be recorded.
7) Experiment will be repeated at least one more time to make sure results are valid and if there is a possible trend.

Started

I am going to upload a photo of my experiment every fortnight hopefully...
anyways I've started a mock trial version of my experiment and will seriously start later this week.
WISH ME LUCK!

Climate Graph 2009

FINALLY FINISHED THE GRAPH!

ANOTHER CHANGE

My four liquids i will test with are dish detergent, coke, orange juice and white vinegar. Better get started on my climate graph thing...

STARTED TODAY :D finally

some small changes to my experiment
1) the amount of liquid used will be 50 ml
2) the liquid, soap will be replaced by dish detergent

Another thing, due to a mini mock experiment I conducted with just one contact lens to see if there is an immediate reaction with the liquid, orange juice.I realize that the contact lens would float and it is easily torn if submerged down roughly. I wonder if this will affect my experiment...

wish me luck on my experiment :)

will definitely start soon

NEXT MONDAY :)

slight glitch

oppss...one of my contacts has dried and cracked...have to get a new one.

ready to begin..but

I'm all set with all my equipment and materials but obviously i need to get the final YES from Ms Zhang...so just waiting for that right now

OFFICAL BLOG UNO

or my experiment, I will observe which kind of liquid is best for preservation of soft contact lenses.
My CONTROLLED variables are: the contact thickness and diameter width,the contact brand, the amount of liquid the contact is submerged in.
My INDEPENDENT variable is the TYPE of liquid it's in.
My DEPENDENT variable is the level of erosion that occurs to the contact lens and which liquid is best at preserving lens.

my METHOD is
1) Obtain 4 already sterilized soft contacts of the 1. Day Acuvue moist brand
2) Measure the thickness and diameters for the contacts
3) Place contacts into separate 'beakers' (which is actually glass cups) which are containing 100 mL of different liquids; coke, hand detergent,orange juice and my neutral liquid, water.
4) Leave the contact to sit in the liquid at room temperature.
5) Observe for signs of erosion and moulding. Which ever one has a contact showing any sign of erosion would recorded and "disqualified".
6) Record observation.
7) Repeat experiment twice to check if the obtained results are reliable.

Boiled water- relatively pH neutral
Coke - acidic
Orange Juice - acidic
Soap - acidic
Milk - slightly alkaline

My experiment will take place in a dimly lit environment at room temperature. My 'beakers' will also be covered to slim the changes of my liquids evaporating. I will then check my liquids at the same time every single day and record ALL my observations. If any liquid moulds, shows signs of obvious bacteria existence and signs of contact erosion, that liquid is 'disqualified'. My final "best preservation" liquid will be obtained as the last liquid left standing as all the other liquids will be disqualified.

I will probably start my experiment next week. :)

BLOG 1 draft...

For my experiment, I will observe which kind of liquid is best for preservation of soft contact lenses.
My CONTROLLED variables are: the contact thickness and diameter width,the contact brand, the amount of liquid the contact is submerged in.
My INDEPENDENT variable is the TYPE of liquid it's in.
My DEPENDENT variable is the level of erosion that occurs to the contact lens and which liquid is best at preserving lens.

my METHOD is
1) Obtain 4 already sterilized soft contacts of the 1. Day Acuvue moist brand
2) Measure the thickness and diameters for the contacts
3) Place contacts into separate 'beakers' (which is actually glass cups) which are containing 100 mL of different liquids; coke, hand detergent,orange juice and my neutral liquid, water.
4) Leave the contact to sit in the liquid at room temperature.
5) Observe for signs of erosion and moulding. Which ever one has a contact showing any sign of erosion would recorded and "disqualified".
6) Record observation.
7) Repeat experiment twice to check if the obtained results are reliable.

Boiled water- relatively pH neutral
Coke - acidic
Orange Juice - acidic
Soap - acidic
Milk - slightly alkaline

My experiment will take place in a dimly lit environment at room temperature. My 'beakers' will also be covered to slim the changes of my liquids evaporating. I will then check my liquids at the same time every single day and record ALL my observations. If any liquid moulds, shows signs of obvious bacteria existence and signs of contact erosion, that liquid is 'disqualified'. My final "best preservation" liquid will be obtained as the last liquid left standing as all the other liquids will be disqualified.

DECISION

i have decided....TO DO THE CONTACT LEN EXPERIMENT :)

erosion of soft contacts

I want to put soft contacts into different liquid solutions such as coke and mineral water. As for how to measure the erosion, I'm thinking about measuring the diameters and simple observations such as 'whether it developed bumps or if it wasnt flexible any more?' I wonder if thats good enough or do i need actual facts and figures? help?

fruit has DNA?

Wondering for days for a good experiment topic, caught up between human participant experiments or simple 'leaving something in a covered jar' experiment. I found a really good one, to see which solution can preserve fruit DNA the longest.I didn't even know fruit had DNA...

moment of wonder

Not sure if I'm supposed to put this up, but currently pondering for an idea for my experiment. I'm thinking somewhere along the lines of plastic bag, breaking down, six months and environment. Still Indecisive though... I don't want to grow a plant like everyone else!

HELLO WORLD.