Weighing the rust

Hi again

For measuring the rust I think I will measure the pipes with a scale where the lowest numebr on the sclae is 1 gram. However I think think I will need something more prescise that also measures milligrams because then the weights will be more varied and the varibale will be better controlled.

I'm think of measureing the pipes everyweek as well to show the rate of rusting. But I ;m not sure if this will affect the overall results at the end of the 4 weeks.

So far this is my idea.

For my discussion I'll probably add how we try to prevent rust in pipes like the different devices and chemicals used.

Im back again

I made another mistake.
THe independant variables are:
- size of copper pipe portion
- amount of solution
- ingredients in solution
- time
- container
- location
The dependant variable:
- the amount of rust
Whoops I know I am very careless
For mearsuring rust I think I will still do it by measuring the weight of the copper pipe before and after the experiment. I can't easily control the variables when scraping the rust off or looking at the rust and deciding which has more by my eye. This wouldn't be a fair test.
I think I might have to use some special scale that hopefully the school has but I'll check on it and write what I will use, tomorrow

But Bye for now

Final Decision

In the las post I think I made a few mistakes so I'm going to fully Explain my experiment now.
The hypothesis of my experiment is that mor acidic washing substances wll cause copper pipes to rust more.
In may experiment I will cut up a copper pipe into a equal portions and place each portion into a tub of solution for 4 weeks. The different solutions will include:
Vingear Solution: 50% Vinegear and 50% water
Bi Carbonate of Soda Soultion: 50% Bi Carbonate of Soda and 50% water
Washing powder Solution: 50% Washing powder and 50% water
The independant variables will be the time frame, the tub size, location amount of solution and the size of the copper pipe.
The depedant variable will the be the different ingrediants in the solution and hopefully the rust
During the experiment I'll take photos. This experiment will take four weeks and instead of doing two other tests afterwards I will do all three of the experiments at the same time because of the time frame. By doing the experiment three times it would more fair and I could get better results. After the experiment is finished I will measure the amount of rust and put the result on a column graph.
But I'm still of thinking of ways to measure rust I have a few ideas. These indclude
- Weigh the copper pipe before and after the experiment
- Scrape the rust off and measure it
- I could visualy decide
I think I'll probably weight the copper pipe before and after the experiment because it is more appropriate and accurate. I wouldn't be able to control my varibales if tried to scrape the rust of because I might scrape too much or little and some dust may still be in the scraper.

What do I do

Now I think I've just confused myself
My point of the experiment was to see which washing substance would cause the most rusting. My hypothesis is that more acidic washing susbstances will cause more rusting. Now I'm going to change my experiment again. I will stilll use same sized copper pipes but I will increase the concentrations in my solutions. So I'll probably use
Vingear Solution: 50% Vingear and 50% water
Washin powder soloution: 50% washing powder and 50%water
Bi carb Solution: 50% Bicarbonate of soda and 50% water.
The time frame, amount of soloution, tub size, copper size and location will remain constant which is the dependant variable.
The independant variable will be the different substances int he solutions.
I hope this makes more sense.

Oh Dear

Ms Zhang just told me that the concentration of my solutions wouldn't show much of a difference. But the aim of my experiment is to see the difference in rusting of copper pipes caused by the different washing solutions. Maybe I should chnage my experiment where I see if the more concentrated my solutions get the more rusting occurs. Then I could compare the differences. So would compare the difference of rusting with different concentrations of vinegear, Bi-carbonate of soda and washing powder solutions. This is what I'm going to do I'm going to label the different concentrations with different levels, from less concentrated to more concentrated. Here is an e.g. if none of you get what I'm saying:
Vinegear Solution levels
Level 1 : 75ml water and 25ml vingear
Level 2: 50ml water and 50ml Vingear
Level 3 25 ml water and 75 ml Vingear
All together I'll have to have 9 tubs
Pls leave comments on how I could improve

I'm BACK

Okay Well I've been thinking more about my experiment. This is what I think I going to do.
I'm going to get a copper pipe and cut it up into equal portions. Then I'm going put these portions into individual ice - cream tubs or some sort of bucket with a solution.. Even though the solutions will be different they'll still be the same quantity. For e.g.
Water solution = `100 ml
Vingear solution = 15ml of vinegear and 85ml of water
Bi carbonate solution = 15g of Bi carbonate soda and 85ml of water
Washing powder solution = 15 g washing liquid and 85 ml of water
I'll probably keep the copper tubes in the solutions for a week and take picture of the changes in the material everyday. At the end I'll compare the difference in the rusting.
so I'm going to keep the amount of solution, size of copper pipe portion and amount the days in the solution the same. The things that won't be the same will be the different solutions and hopefully the rusting.
I'll probably have do the experiment three times so it will be fair and I'll also get better results.

OMG

Well seeing as MS Zhang has just reminded that our blogs are due next thursday I think i might get a move on. Well it did some research and found a few ideas. Here are some of them
- Affect of sound on the growth of plants
- In what environment does bread last the longest
- effectiveness of different hand sanitzers on killing E. Coli and Serratira bacteria
- Effects of salt water on plants
- Effects of different washing substances on pipes
- Househol vs professional carpet cleaning

So ultimately I chose the effects of different washing substances on pipes
I'm thinking of like placing small tubes of copper pipes into different solutions such as water and Bi Carbonate of Soda, water with vinegar and water with wahing powder. I thinking that maybe the pipe will go rusty. So I might change the experiment on which different houshold substances cause the rusting of copper pipes the quickest