Page 1 - Home Assignment 5
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SAI INTERNATIONAL SCHOOL
Class - VI
Subject - Chemistry
Topic – Changes Around Us
Sub-Topic – Physical Change, Chemical Change, and their Properties
Activity– 3
EXPERIMENT: To understand the chemical change taking place when an electric
current is passed through the dilute copper sulphate solution.
Materials Required:
Beaker having 500mlcapacity,9-volt battery, copper sulphate crystals, copper plate, iron
nail and connecting wire and water.
Observation: Students will observe that the colour of copper sulphate changes from
blue to pale green. And a reddish brown colour coat is formed over the iron coin.
Inference: Chemical reaction takes place when the electric current passesthrough the
copper sulphate solution.
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