Procedure
1.
Fill
mortar with 100 g of cereal.
2.
Using the
pestle, thoroughly crush the cereal.
3.
Add .5 L
of water to the cereal.
4.
Stir
cereal with magnetic stirrer for 5 minutes.
5.
Remove
the magnet from the cup.
6.
Rinse
magnet with water.
7.
Wipe
magnet with a filter.
8.
Let
filter dry.
9.
Find the
mass of the dry filter.
10.
Subtract
mass of used filter from clean filter mass.
11.
Repeat
steps 1-10 five times.
12.
Repeat
steps 1-8 for each of the two remaining cereals.