SC-921
Filtration
Lower Sec Science · Secondary 1 · Medium · Filtration
A student wants to separate a mixture of sand and salt. Which separation method should be used to obtain pure dry salt from the mixture?
- Dissolve in water, filter, then evaporate the filtrate
- Heat the mixture strongly to burn away the sand
- Use a magnet to pull out the salt
- Distil the dry mixture directly
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