SC-737
Evaporation and crystallisation
Lower Sec Science · Secondary 1 · Medium · Evaporation and crystallisation
A student wants to separate a mixture of sand and salt. She adds water to dissolve the salt and then filters the mixture.
Which method should she use next to obtain dry salt from the salt solution in the filtrate?
Which method should she use next to obtain dry salt from the salt solution in the filtrate?
- Filter the solution again to collect the salt
- Use a magnet to remove the salt
- Evaporate the water to obtain salt crystals
- Decant the solution to pour off the salt
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