Topic
Separation techniques
Timing
45 minutes
Description
In this experiment students use simple processes to separate sand and salt.
Apparatus and equipment (per group)
250 cm(3) Beaker
Filter funnel and paper
Evaporating dish
Tripod
Bunsen burner
Gauze
Glass rod for stirring
Chemicals (per group)
A mixture of salt and sand (about 20 percent of salt)
Teaching tips
It can be effective to show the separate sand and salt to the whole [...]
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