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Four From One: The Separation Challenge

Created by Argraide
Updated October 27th, 2026
Four From One: The Separation Challenge

At a glance

Staff pick
Picked by the Argraide team
Play mode
📺 Presenter
Format
🧊 3D
Length
⏱ About 20 minutes
Subject
Science
Grade
7
Curriculum
Ontario
Curriculum codes
C2.7
C2.1

About this activity

A projector lab at a shoreline field station. One jar holds sand, salt, iron filings and water. The class tests each separation process (magnet, filter, evaporation, distillation), sorts the whole jar one step at a time, plans the order for new jars, then spots each process in real Ontario jobs.

What students learn

  • Describe what magnetism, filtration, evaporation and distillation each separate from a mixture that includes a solution
  • Explain with the particle theory why dissolved salt passes through filter paper and why distillation keeps both the salt and the water
  • Choose and order separation processes so every part of a mixture is recovered clean, without adding anything
  • Connect each separation process to real uses such as maple syrup, water treatment, recycling and desalination

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