After this lesson, you should be able to:

• Distinguish between magnetic, electric and gravitational fields
• Describe the pattern and direction of the magnetic field of a bar magnet
• Visualise the shape of magnetic fields using iron filings or magnetic compasses
• Predict the behavior of magnets when they are brought in close proximity
• Compare the magnetic field of the Earth to that of a bar magnet
• Distinguish between the geographic and magnetic poles of the Earth
• Give examples of phenomena relating to the magnetic field of the Earth
• Discuss qualitatively how the magnetosphere provides protection to the planet