Question

You can use a sieve to separate sesame seeds from sunflower seeds because their
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differ. You can use a
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to separate iron filings from sand because the property of
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attraction is different for each substance.

Answer 1

You can use a sieve to separate sesame seeds from sunflower seeds because their **sizes** differ. You can use a **magnet** to separate iron filings from sand because the property of **magnetic** attraction is different for each substance.