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Grade 7 Integrated Science Quiz on Mixtures and Separation Techniques

Discover how mixtures behave and the best ways to separate them using real-world examples.

Otieno wants to remove stones from a sack of dry beans. Which method should he use?

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Sharon pours muddy water into a bottle and lets it stand for an hour. The mud settles. What method is she using?

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Brian needs clean water from muddy water. He pours it through a clean cloth. Which separation technique is this?

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Mercy adds salt to water and stirs until it disappears. What kind of mixture is formed?

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Jane wants to get pure salt from saltwater. What method should she use?

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Kevin notices that when he boils muddy water, steam collects and cools into clear drops. What separation method is this?

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Sharon mixes iron nails and sawdust. What simple method will separate them quickly?

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Otieno notices oil floating on top of water after washing greasy utensils. What method can best separate them?

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Mercy prepares orange juice with pulp. She wants a smooth drink. Which tool should she use?

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Linet dissolves sugar in water and wants to see the sugar again. Which method is suitable?

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Jane spills sand in a glass of water and wants to remove only the water. What should she do?

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Sharon mixes maize flour with small pebbles. What’s a simple way to separate them?

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Brian wants to separate colored ink into its components. Which process will help?

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Kevin observes a milky liquid separating into layers after sitting for some time. This mixture is likely a:

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Mercy stirs cocoa powder into hot water. After some time, the cocoa settles. What type of mixture is this?

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