Lesson 4 of 8

Filtration

Goal: Describe how filtration separates an insoluble solid from a liquid.

Puzzles for this lesson

Filtration separates an insoluble solid from a liquid.

Filter paper has tiny holes. The liquid passes through. The bits of solid are too big.
The residue is the solid left in the paper. The filtrate is the liquid that goes through.
It does not work on a solution. Dissolved particles are small enough to go straight through the paper.

Your turn

This lesson’s activity starts here in a moment.

I can label the filtrate and the residue.I can say when filtration is the right method.

This lesson on one page. Tap it to make it bigger.

Solution A solute dissolved in a solvent

Insoluble Not able to dissolve

Filtration Separates an insoluble solid from a liquid

Residue The solid left in the filter paper

Filtrate The liquid that passes through the filter paper

For teachers: AQA 3.5.2 · Pearson Edexcel 13.1 · Cambridge 9Cc.03 in part