Mon Prof Augmenté
Filtering Muddy Water
Age 11 · Science
Muddy water is poured into a funnel lined with filter paper. The paper traps the brown solid and lets clear water drip through.
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Age 11: open this week
Browse Age 11
In the picture
- Wet brown sand inside the paper: the solid particles that were held back.
- White filter paper cone: its tiny holes let liquid pass but block larger solid bits.
- Clear liquid in the lower beaker: the filtrate that has passed through the paper.
Examples
- Cleaning muddy puddle water with filter paper
- A coffee filter separating coffee grounds from coffee
Key takeaways
- Filtration separates an insoluble solid from a liquid by particle size.
- The clear liquid that passes through is called the filtrate.
Quiz: Filtering Muddy Water (Age 11)
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In filtration, what does it separate?
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Why does the filter paper let liquid through but hold back the solid bits?
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What is the clear liquid that drips through the filter paper called?
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