Now, touch the first object with the magnet to see if your prediction is correct. Continue making predictions and testing each object. The paper clips, jar lid, and nail are probably magnetic. The ...

They test three different magnets and measure the distance that each magnet is able to attract a paper clip. To make the test fair, they use the same ruler and paper clip throughout. This short ...

and watch it pick up paper clips or other ferrous materials. It is also grade school science to show that neither an electromagnet nor a permanent magnet will pick up nonferrous items like copper ...