but befor i get into the blog we need to know what is diffusion?
when somthing spreads more widely.
Aim:see if hot/cold will difuse particals fast.
Hypothes:I think the cold will stop nthe diffusion because the particals will freazee.
Equipment: petrl dish,water,tweezers,a crystal of potassium permanganate.
meathod:
half filln your petrl dish with cold water.
place the petrl dish on your work bench and allow the water to become settled.
using the tweezers, place a single crystal of potassium permangate in the centre of the petrl dish.
observe for 5 mintues
repeat the experiment using hot water.
Reasults:The cold did make the colur spread slower than the heat
here is a photo of my group doing experiment.
Well done Ella! Your next step would be to use a discussion to explain why your results were happening... why do the particles spread faster in hot temperatures? what does it give to the particles?
ReplyDelete