BUILDING AN ELECTROMAGNET

Children of year 6 made a experiment. it consist of.....



We used:
- A screwdriver with a plastic handler insulated wire.
- 4-5 volt battery.
-Sticky tape
-A ruler
-Steel paperclips.
-Wire strippers or scissors.

1. Cut about 30cm from one end of your wire, stick the wire to the base of the scrredriver´s handle, where it meets the blade with a piece of tape.

2. Wrap the wire tighty around the metal bladeof the screwdriver 60 times. Use stick tape around the last turn to hold it securely in place.

3. leave a lenght of 30 cm. Then cut the wire. Ask an adult to  remove the insulation from the last 2-3 cm. Then strip the same amount off the end attached to the handle.

4. Connect one end of the wire to one terminal of the battery and the other end to the battery´s other terminal.

5. Touch the end of the screwdriver blade to some paper clips.
How much can it pick up?

conclussions
Screwdriver becomes a magnet when the current is switched on. When the electricity flows ot produces a magnetic field..
When the current is turne off, the magnetism dissapears.

Some of the reports they wrote: