Evaporation and Crystallization

Evaporation and Crystallization

Grade 8 · Science · 45 min

What's Included

Learning Objective

I can explain how to obtain pure crystals from a solution using evaporation and crystallization techniques, and relate it to separating mixtures like magnesium chloride from calcium sulfate.

Warm-Up Video

Unknown Channel · 5:00

GCSE Chemistry - Filtration, Evaporation & Crystallisation

Practice Questions

6 questions · Short answer

Exit Ticket

Quick comprehension check

You have a solution of potassium nitrate (KNO₃) in water. Describe the steps you would take to obtain pure crystals of potassium nitrate from this solution using crystallization. A company is trying to obtain pure copper(II) sulfate (CuSO₄) crystals from a solution. They are concerned that heating the copper(II) sulfate too much might cause it to decompose. Which separation technique, evaporation or crystallization, would be more suitable in this situation, and why?

Complete Lesson Package

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