23: risks

last minute risk assessment/ brainstorm.

GLASSWARE: the test tubes are obviously glassware. if they break, that's obviously dangerous.
SPILLAGE: the milk could accidentally spilled. no use crying over spilt milk though. spillage could cause slippery surface on floor. & if left uncleaned it'll turn foul.

can't really think of much else.

srp is almost over. :D

22: how sad

i will not be handing my report in today which i find so depressing. i hope there won't be a long line tomorrow. i also hope i finish today or i'll die of stress. sobs. anyways, good luck my fellow last-minute workers. you can do it. :)

21: results cont.

for some stupid reason, when you click on the pics on my last post, they won't open to a new window & i cbb figuring it out now, so you'll just have to squint. the following graph is just the last two graphs combined into one whole graph. i won't be putting this in my report because it's confusing and the key/ legend isn't right.

21: results

okay, so after many painful hours of flicking through photos of milk, i've finally tabulated all my measurements. you probably won't look through them because i know i wouldn't be bothered either, but we're suppose to post our raw data so yeah...here it is:

skim milk results table:

low fat milk results table:

reduced fat milk results table:
whole milk results table:

evaporated milk results table:

average results table one:

average results table two:

line graphs of the two average tables:

there's another graph that's humongous so i'll put it in a separate post. i'll put photos up as soon as possible. sighs. so much stuff to do. still gotta talk about the risks of the experiment. i'll get to it all. eventually. sighs. gonna fail science this year.

20: note to self

omg, so much stuff to do. here's a list of what i need to do (mostly for my own benefit):
-SRP booklet
-SRP report

for the report:
-fill in cover sheet & crest award sheet
-come up with report name
-write intro (do research, find books)
-cite the intro
-write method
-analyse results
-type the results
-do the discussion
-write an awesome conclusion
-do the reference
-possibly acknowledgements and/or appendix
-format the whole report
-finish all this by tuesday

gosh gosh, so much to do. :(

once again, good luck to everyone. i believe in you. :) you can do it!

19: la la la~

no creative title this time. my brain is not working creatively. =_="

okay, so another dilemma (not really). to get through all my trials, i did three trials at one time rather than one by one like my method says. i was wondering (again) whether i need to actually put this in the method (the doing three trials at one time thing) or do i just leave my method as it is (& put it into paragraphs). hmm...i guess i'll just ask ms zhang today, assuming that we have a ms zhang lesson & not some sub.
ANOTHER dilemma (a real one this time). i swear that people don't like milk enough to publish books about it. specifically foaming milk. i'll try looking into books about coffee and stuff, but it'll probably just come up with the different types of coffee (flavours & beans) rather than making it (& thus talking about foaming milk). i guess i should also look into foam and why the fat in milk changes the foam that is produced when the milk is shaken. is this relevant? i have no idea. but i need BOOKS BOOKS BOOKS. if only i could publish my own & just use that instead. it would be a really terrible book though, but back on topic now. libby used some books from google books, so i'll guess i'll see if they have any relevant books. hurstville library also has a pretty big non fiction books section, so i'll see if they have any books. the thing is though, i have no idea what keywords i should be using to look for these books. how frustrating. T_T

once again, good luck to everyone & i hope you all finish on time. don't forget about the rotation test. sighs. everything's on the 17th june, even my sister's birthday. i hate year 10 (i don't but i do, you know?). T_T

18: finished!

no, i have not finished my report, although i do wish that i miraculously had... i have finished doing my experiment and O-M-G it was horrible. instead of taking 30 minutes for every three trials (or for each test liquid per day), i ended up taking 40 minutes to one hour for each test liquid and it was a PAIN in the bum. it's over now though, just gotta do the report. what joy. T_T

anyways, the good news is that my research was somewhat accurate with whole milk producing a foam that was relatively okay in terms of volume (do not ask me what that means. you may not know, but i know exactly what i mean. ^^) and definitely did not last long.
i need to get my measurements for the test liquids into tables and i've taken heaps and heaps of photos, so i need to sift through them all. there's over 1000 photos, so that will take time. i took heaps of photos of the trials, but i totally forgot to take photos of my equipment & test liquids. my mum threw out the cartons before i remembered to take pictures, but oh well.
i also wanted to mention that the reduced cream did not work out so i've ditched that, as well as the cream because i had a mini epiphany and realised that my aim was to investigate which types of MILK produce a good foam with high volume and longevity. and cream is technically not milk. it's the fat part of the milk they remove from milk to make skim milk. so yeah.... i did do six trials of cream though, and the first three trials, i swear, almost turned to whipped cream.
i'll try get pictures up as soon as possible, although i'm more concerned about my report at the moment. however, we need to put the raw data up (i think) so i'll try get it on soon. i won't post all 1000+ photos on for obvious reasons (such as i can't be bothered & other people probably wouldn't be bothered looking through them), so i'll select a few to post.
i wanted to ask, do we need a risk assessment? it's not a sub heading, so i wasn't sure if we needed one...
i know results are going to be dodge because there is so much human error involved (much more than i expected), but thank gosh i did fifteen trials for each test liquid. some of the results were REALLY sus. oh well, let's just hope it turns out fine.
i think that's all i really have to say for now...

GOOD LUCK to everyone. & to those people who i know that have only just started doing their experiment, i wish you EXTRA GOOD LUCK. updates on my report & results soon. :)

17: ready, set, GO

just wanted to say that i've (finally) started my experiment. i did a few trials and thought they didn't really out, so i decided to restart it. thank gosh i did, because i've planned everything really well (i think).
i made a few more changes again. i've switched the 30mL of test liquid for each trial back to one tablespoon (or 20mL) because when i first put in 30mL into a test tube, it filled more than half the test tube.
also, i found evaporated milk at woolies and the fat content of it was around 8-9 %. it wasn't 20% like stated in the last post because it was actually 20% milk solids and if you've been paying attention, milk solids are actually the fat and protein added together. the "skim" evaporated milk had a fat content of 1.5% i think, but that's the same as low fat milk so i didn't but it. HOWEVER, i found some cans of reduced cream and they had of a fat content of 20-something, so i'll be seeing if they could be used instead.
every 3 trials takes about 30 minutes to do and i have to take pictures every minute. it's so annoying and my back is dying since i'm sitting on this tiny stool. it'll take me probably a bit more than 3.5 hours to do three trials for each test liquid.
i need to continue with my experiment now, so i'll post my results and pictures VERY SOON i hope. good luck to everyone! don't leave it to the last minute. :)