Chromatography
Is black ink really black?
Explore dissolving and ‘separating mixtures’ with this quick, cheap & colourful activity.
Age
y5 (adaptable for y4 or y6)
Duration
1 hour
Method of delivery
Teacher led / Videos / Practical activity
Curriculum link
Properties & Changes of materials:
“know that some materials will dissolve in liquid to form a solution”
“use knowledge of solids, liquids and gases to decide how mixtures might be separated”
“demonstrate that dissolving, mixing … are reversible changes”
“They should explore reversible changes, including, evaporating, filtering, sieving, melting and dissolving, recognising that melting and dissolving are different processes.”
Objective(s)
To work neatly to observe the separation of ink mixtures in solution.
To consider how these skills are transferrable to the workplace.
Careers link
Application of separation techniques in situations such a quality control testing in the chemical & pharmaceutical industries, and in forensic testing.
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