SME
Grade 8 Science
Magnetic fields and electromagnets
The main lesson, then each kind of problem it solves.
Magnetic fields and electromagnets
Main lesson
Magnetic field lines
Use this for “Draw the field around a bar magnet” and “What does a compass do near a magnet?”
Paper clips by turns of wire
Use this to record how many clips your electromagnet lifts with more turns.
Magnetic pull by distance
Use this to record how a magnet’s pull falls as it moves away.
Stronger or weaker magnet?
Use this for “Which change would make the electromagnet stronger?”