. get your materials
. testing tube
. filter
. testing tube holder
. plastic tubs
. Siv
. salt
. rocks
. sand
. rice
. water
first separate the rocks with your hands and put a plate under it so you don t wast your materials.
second with the siv separate rice from the salt and sand.
third with a tub put the sand and salt in water
forth put the salt water in a hot pan
firth put the sand in a testing tub
sixth put the salt in a testing tub
now your done bye
