Primary Science Applications

For primary science, all the investigations needed can centre around the simple electro-magnet. This can be made by winding about 20-40 tight, neat turns around an iron nail and connecting the ends of this coil to 1 or 2 torch-sized 1.5v batteries. Once used, the nail may retain some magnetism, even when the current is switched off

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Some Key Questions

 

Precautions

Contents

History of magnetism, What is a magnet
What do magnets do, Test for a magnet
Magnetic fields
The Earth's magnetic field
Theory of magnetism
Induced magnetism
Magnetic properties of iron and steel
Storing magnets
Making a magnet
Electro-magnets
Fleming's Left Hand Rule
Self assessment
Comments, reflections and study action plan