Junior cert science investigations 2013

eannamcgrath

I am teaching science in an all boys school and we are just starting our investigations this week, we are thinking of doing the biology and chemistry topics, anybody further along have any advice?

Professor .X.

eannamcgrath wrote: »

I am teaching science in an all boys school and we are just starting our investigations this week, we are thinking of doing the biology and chemistry topics, anybody further along have any advice?

I am in a school in Cork, we have also just started our investigations. Our teacher has decided to do the physics and biology investigations with us. So far our class have researched on the topics and we are planning on starting experiments next week. Any advice would be great!

shaneor567

I am in an all boys school.We've just started the Biology investigation.So far I have done research about the vitamin C content in fresh fruit juices.We will be starting the chemistry investigation in the near future.

TheLatheMaster

I am in an all boys school. We have started our investigations. We are researching the vitamin C content of a number of commercial and fresh fruit juices. We are planning on starting experiments next week. Feedback would be appreciated.

eannamcgrath

We are starting tomorrow adding DCPIP to juices tomorrow morning, drop by drop. not sure if we are going to dilute the juices or not, and we might end up adding the juice to the DCPIP rather than the other way around to see if that gives us better results. We will be using 0.1 % solution of the DCPIP i think!

kearnsmachine

hello i am mr kearns we are also doing this investigation any ideas for me:eek:

TheLatheMaster

We are starting our experiments today. We have decided to use 0.1% DCPIP. Well 'The Hen House' how are you doing in your experiment ?

The Hen House

we are also doing the investigation on the vitamin c content, we are wondering does anybody have any results yet? we reckon that fresh juice is higher in vitamin

paddy wagon

my teacher keeps asking me to get juices for it what do i get? do i get orange juice or dilute drinks:P

Hacksaw Hillbilly

Hello 'paddy wagon' I suggest you use the freshest juices you can find for the best results.

deise98

We have started this investigation today and we found that when we diluted our fresh juices mi wadi had the highest vitamin c content... did anyone else have this result ?

dids6457

deise98 wrote: »

We have started this investigation today and we found that when we diluted our fresh juices mi wadi had the highest vitamin c content... did anyone else have this result ?

Hi guys once ye get the number of drops of DCPIP what are ye comparing these to in order to figure out the vit c content? Another teacher in our school is testing a number of different concentrations of vit C solution with DCPIP in order to have a comparison.
Are there any other schools doing anything different?

eannamcgrath

we did our first proper run today and we used 0.1 % solution of DCPIP and we used 0.1 % solution of Ascorbic acid (pure vitamin C) and it worked pretty well, some groups decided to dilute and some didn't!

we're hoping to start the chemistry one soon!

bridgetown1

Hacksaw Hillbilly wrote: »

Hello 'paddy wagon' I suggest you use the freshest juices you can find for the best results.

I don't understand what you mean by 'best' results???

showing that old juices have low Vit C content is a form of 'best' result, surely?

Vivara

I honestly can't figure out if this thread is a piss take. Did all of you first time posters honestly register just to comment on your Junior Cert. science investigations?

I think I may be missing an in-joke here, or some poster has registered themselves under a number of accounts.