its is a temporary magnet.
Step 1: Things You'll Need:
1. iron bar
2. copper wire
3. battery 1.5v-2v
4. electrical tape
Step 2: Coil the Wire Around Iron Bar.
leave ends to attach to battery.
Step 3: Now Attach It to the Battery.
make sure that electricity is flowing.
Step 4: Now Try Picking Up Nails.
Step 5: Now Tape the Ends Attached to the Battery.
Colors of the Rainbow Contest