Electromagnet

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.