Tuesday, June 1, 2010

got my equipment!

I have visited my nan's house and borrowed her centigram, i have also purchased some plastic plats and unearthed an old atheletics timer from ages ago

I have everything i need for the experiment!

Wednesday, May 12, 2010

method and equipment and aim and hypthesis

Hypothesis: when melted, a candle will lose mass and become lighter.


Aim: to determine if candles lose mass when burnt and how much mass is lost from different candles when melted


Method:


a) Equipment:

5 different candles

Centigram

Timer

Plastic plate

Matches


b) Method:

1. Collect the equipment and set it up

2. Burn a candle for one hour and calculate mass loss at 10 minute intervals in percentage mass loss

3. Repeat step 2 for the other four candles

4. Observe the changes of the candles and other notable points of the experiment

5. Record results in a table and also plot the results on a graph

6. Clean up experiment area and put away equipment

climate graph


hi...

my scanner broke and it hasn't been fixed yet...so this is a picture of the graph. I know its not great quality but you have to make the most of a bad situation.

here it is...

Saturday, May 1, 2010

done some research

I have been researching how candles and burn and why. This is for some background knowlegde on my SRP experiemnt. this is what I hace deduced so far:
- candles burn the wick (usally made from a rope that has high levels of flamability e.g twine)
- They burn from the centre outwards, butnot evenly. Depending on the way the wick is facing it (due to wind or dodgy manufacturing), the candle will burn on one side more than the other
- when a candle burns: some of the candle truns to hot liquid wax, the rest evaporates (sometimes leaving a pleasent scent)
- the candle is its own fuel. The height and quality of the candle and its wax will determine how long it will burn.

so this is just some research that I have done. I will post some other things later

xxoo

Monday, April 26, 2010

update

hey wats up?

haven't posted anything for a while.

heres an update:

1. i'v been collecting all the equipment i'll need for the practical e.g. centigram
2. I'v been thinking about which candles to use in the experiment
3. reading up on how to conduct completely fair experiemnts

so thats the update

Wednesday, March 10, 2010

My official Idea!

Hello all

So I’ve finally come up with an idea for my SRP experiment and am going to stick with it because I think it has potential. Here it is: “How much mass is lost from different candles when melted?”.

I am going to obtain these materials: scales, 5 different types of candles (varying in height and diameter) , matches and a timer.

My plan is to get the 5 different candles and burn them under identical conditions, one after the other for one hour and calculate mass loss at 10 minute intervals, in percentage mass loss (which I will plot on a graph for the results). My hypothesis is that the candles will in fact lose mass because many candles produce a scent plus the wick burns.

In the case of variables I have deduced that:

The independent variable is: time i.e. period of burning

The dependent variables is: mass of the candle

The things I will be able to control in the experiment are the time of burning and the environment in which the experiment is being conducted. I plan to conduct the experiment in an indoor environment where there is little or no wind interference.

So what do you think?

Bye for now but not forever.

xxoo

ideas

ok so im thinking about what to do for my experiment:

i was thinking about testing the strenhght og household paints

or maybe how long it will take different poeple's heatrates to slow down to normal after a 2mintue agility test

still decideing tho....

Wednesday, March 3, 2010