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Thursday, 8 March 2018

white powder tests


white powder tests

equipment
baking powder
cornflower
suger
salt
iodine

methed

  1. place 1/4 of a teaspoon (1 ml ) of the four white powders on a sheet of black paper. label the powder 
  2. study the powder with a magnifying glass 
  3. add idaden to the powder then throw it out 

here are the results 
powder
Feel
smell
Look
iodine
A
gritty
secaning
White
yellow
B
smooth
Nothing
White
black
C
gritty
Walnuts
White
black
D
gritty
Walnuts
White
Yellow
we think
 A was baking powder
B was cornflower
C was suger
and D was salt 


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