Brain POP - Magnetism
Name _____________________________
1. A naturally occurring iron ore that is magnetic is ____________________. This is where magnets get their name. Magnus discovered that he could pick up an iron pot with a rock he called ____________. All magnets are surrounded by a _______________________. 2. Magnets have 2 poles, ______________ and __________________. Opposite ends
_____________ each other while similar ends __________________. 3. Not all __________ are magnetic. But any metal that contains ________________ could be. 4. ______________ cannot be magnetized. 5. The alignment of the _______________ ________________ inside a magnet are the same and creates a ____________ __________________. 6. The earth has its own ________________ ______________ and ____________
______________. It pulls at the __________ needle and that why it points to the north pole. 7. ___________________ are made up by running a current through ____________ or _________. 8. Running a current through a wire creates a ___________ ________________. 9. _____________ ______________ built the first electromagnet in ________________. 10. Match the following words with their meanings. _______ Magnetism _______ Magnetite _______ Poles _______ North and South _______ Compass _______ Magnetic domain a. Measures the magnetic North b. An invisible force that pushes or attracts objects c. Pull inside a magnet d. Naturally occurring iron ore that is magnetic e. Two points on a magnet where the pull is the strongest f. Names for the poles
Challenge: Draw a diagram of a bar magnet and the back of this page and label the following: SOUTH POLE, NORTH POLE, DOMAINS, and MAGNETIC FIELD.
S. Baker 2001