SC-811
Filtration
Lower Sec Science · Secondary 1 · Medium · Filtration
A student wants to separate a mixture of sand and salt water. She first pours the mixture through filter paper in a funnel. What is the main purpose of this filtration step?
- To separate the dissolved salt from the water
- To remove the insoluble sand from the salt solution
- To change the sand into a soluble substance
- To evaporate the water from the salt solution
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