Magnets, Magnets and More Magnets
Explore
Using the material given, find
things around the room that
stick to it.
Explore
Using the material given, test
what happens when they are
close to each other.
Explore
Using the material given, test
what happens when you thread a
pencil with one and, then, add
the other one.
Explore
Using the material given, test
what happens with paper clips.
How many can the magnet hold
at one time?
Explore
Using the material given, test
what happens with masking tape and paper clips.
• Tape three pieces of masking tape (stacked on
top of each other) to the magnet. Try to pick up
paper clips.
• Continue to add 3 pieces of tape after each try.
• How many paper clips can the magnet with tape
hold?
Magnets
 attract (pull toward)
metals made of iron
 repel (push away)
things not made of metal
Bar Magnet
This is a bar magnet.
The N is the north pole.
The S is the south pole.
Bar Magnet
pull
The north end of this magnet will
the south end of another magnet.
The north end of this magnet will
the north end of another magnet.
push
Horseshoe Magnet
pull
The north end of this magnet will
the south end of another magnet.
The north end of this magnet will
the north end of another magnet.
push
Ring Magnet
Ring magnets also have a north and south pole:
• N can be on the outside and S on the inside –or
• N on one edge and S on the other –or
• N on the top side and S on the bottom.
Rod (cow) Magnet
Rod magnets also have a north pole and a
south pole.
Cows eat everything, including nails and wire.
This can make them very sick. Cow magnets
help keep cows healthy.
Wand Magnet
Rod magnets also have a north pole and a
south pole.
Compass
This is a compass.
The red arrow is pointing North.
People use a compass when they travel.
Things to know about magnets
 A magnet has two ends called poles
• North poles point north.
• South poles point south.
 The north pole of one pole attracts the south pole of the




other.
Like poles push away (repel), unlike poles pull (attract).
Magnets act at a distance.
Magnets attract only magnetic materials.
Cut a magnet in half, each new magnet will have a north
pole and a south pole.
 The north pole of a magnet points toward the
Earth’s north pole.
 The south pole of a magnet points toward the
Earth’s south pole.
Types of Magnets
 Permanent magnets
 refrigerator magnets
 Temporary magnets
 hematite, paperclip, nails
 Electromagnets
wire coil with current flowing
strength and polarity change with
change in current flow