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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