By 2 cm on the lumbar.
Discuss what effect changing the dropping height had on the resulting stains
In two cases out of one (on the cloth and on the lumbar) it resulted in a smaller less porous, more flexible blob with a greater production of splatterings. On the cardboard, the result was the reverse: the blob was more rigid than the previous one had been. The 'blood', however, had congealed on tip of pipette and this might have affected results.
Document your observations of the effect of alka selzer on the cleaned up blood; was it what you expected? Why or why not? Did you have difficulty applying the solution?
I was expecting a chemical reaction to occur as has been my experience in the past with the pill, but I found only slight chemical reaction on the cloth and some clotting as well as elongation, some more bubbles...
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