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Chava has a mixture of salt water that also contains some sand. She wants to remove the sand so that she has only salt water. She tries pouring the mixture through a strainer, but the sand particles are so small that they go through the holes in the strainer.How could Chava more effectively remove the sand from the salt water? A. put a magnet in the mixture to attract the sand B. wait for the sand in the mixture to float to the top C. heat the mixture so that the water evaporates D. pour the mixture through a paper filter

Question

Chava has a mixture of salt water that also contains some sand. She wants to remove the sand so that she has only salt water. She tries pouring the mixture through a strainer, but the sand particles are so small that they go through the holes in the strainer.How could Chava more effectively remove the sand from the salt water? A. put a magnet in the mixture to attract the sand B. wait for the sand in the mixture to float to the top C. heat the mixture so that the water evaporates D. pour the mixture through a paper filter

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Solution

Chava could more effectively remove the sand from the salt water by pouring the mixture through a paper filter. This method works because the tiny particles of sand will get caught in the paper filter while the salt water will pass through. This is a common method used in science labs to separate solid particles from a liquid.

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