Practical activity 4


Group work AIM


In this activity we will see how different metals have different conducting abilities.


MATERIALS • 1,5 V cell • 1,5 V bulb • connecting wires • pieces of different metal wire such as copper, nichrome, tungsten or steel (a strand of steel wool)


QUESTIONS 1 Plan an investigation to find out how different metal conductors in a series circuit conduct electricity differently.


2 Write a hypothesis and a prediction. 3 Name the variables. 4 State how you will make sure the test is fair. 5 Carry out your investigation. 6 Record your results and conclusion. 7 Evaluate your investigation and suggest ways to improve it.


Investigate how different metals conduct electricity differently


Unit 1 Series circuits and parallel circuits 123


STRAND 3


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