Filtration Quick Assessment
Read the paragraph below:
When sand and water are mixed together in a beaker, the sand does not dissolve. To separate the sand out from the water, you must pour the mixture through a piece of filter paper, folded into a funnel and with a conical flask placed underneath. The sand should remain trapped in the filter paper and the water in the conical flask should now be clear.
The sand and water together in the beaker is called a .
The sand is the
We know the sand is the insolube because ____________________________
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The paper is the filter because _______________________________________________________________________________.
The liquid at the end of the experiment is called the _______________ because __________________________________.
Sand does not dissolve in water, so we call it .
Explain why sand can be separated from water using this technique.
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Sadiq carries out the experiment as described in question 1. However, his water still has sand in it.
Suggest 2 things Sadiq might have done wrong.
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How could you improve Sadiq’s experiment to ensure clear water?
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Marissa carries out the experiment as described in question 1, but uses salt instead of sand. What is the salt?
Marissa carries out the experiment as described in question 1, but uses salt instead of sand. What do we call the liquid in the conical flask?
In Marissa's experiment what mixture would the liquid in the conical flask be?