Tuesday, September 13, 2011
Reding, relaxing, pjamas and fire
Flames flying, pyjamas burning and lots of typing to complete and present our science fair board. Our science fair project was " Which Pyjama fabric caught on fire the quickest. "
We tested 4 types of fabric which were polyester, nylon, satin and cotton. After we had completed 4 fair tests we discovered and average our results. The results were cotton burnt the fastest and we thought this was because cotton is a natural fibre and the thread is quite thin and soft. Satin burnt the second fastest. We thought that satin would burn the slowest because we predicted that it would just crumple up before it started burning. Nylon and polyester burnt the slowest. In our hypothesise we predict that polyester would burn the second fastest. we thought that polyester and nylon burnt the slowest because polyester is a synthetic fabric and it has a plastic type compound consisting of many different esters, blended together and formed into strings. Nylon also burnt the slowest and thought this was because nylon is also a synthetic fabric which is made of petroleum products and polymer.
We found that the most difficult stepping stones in this prosess was finishing on time, The tongs we were holding the fabric with were wonky and it was hard and getting our presentation right.
We worked together did our fair share of work and as a result of that we got placed in the top 3 out of yr 7&8 and we are now going to represent Mapua School in the Nelson science fair competition!!!
By Sophie and Hannah
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