4. EQUIPMENT AND METHOD
STEP ONE: make sure you have all the equipment below.
STEP TWO: get one cup, coffee and boiling water then put
one tea spoon of coffee in the cup and pour 170ml of boiling
water in to the cup with the coffee by messaging jug.
STEP THREE: please the 10x10 white material next 2 the
cup on the bench then put 2 teaspoons of coffee on the
material and leave them on the table to dry over night.
STEP FOUR: grab the now stand material of the bench and
get three bowls and put the three different washing
powders in one bowl each with 100ml of hot boiling water in
each bowl
STEP FIVE: place the stand material in one bowl each then
steer them for 2 minuets each and sock them for 3 minuets
each and get them out and let them dry over night then
test what one is the cleanest out of the spree, fab, and
supreme.
5. Variables and fair tests
The variable in this experiment was the washing
powders I changed them three times. The fair tests is
that I got the exact measurement. My experiment was
done twice to do it again how I will do this different next
time was it turned out better the second time
7. Disconclutions and
conclusions
O The thing that went wrong the most was that I
used 10 by 10 coffee coloured material
instead of white calico material. I can improve
this experiment next time by stirring the
powder together with a bit more of hot water
and sock it for a few more minuets. The safety
of it is high because of the hot water, you
should get a adult to pore the hot water. The
time of this procedure is 1 hour not counting
the time for the coffee stains drying over night
and finely the cost was that my experiment
was limit to 3 washing powders because of
the cost.