Research

You could measure the electromagnets strength using magnetic materials. I will be using paper clips to measure the strength. I think that paper clips are a good way to measure the strength because you can gradually pick more up, until the electromagnet cannot hold any more. Then you can tell if the magnet has become stronger or not!

How do you make an electromagnet? You need a battery, a wire, and a magnetic material, preferably a nail. First wrap the wire around the nail a few times, leaving two stray ends of the wire. Then you hold the stray ends to each side of the battery. Now you have created an electromagnet! You can wrap the wire around a nail, a screw, Foil, and air, there may be more.

There are different types of experiments, qualitative and quantitative. An example of a qualitative experiment is: which shell is stronger, an eggshell, or a blue jay's egg? An example of a quantitative experiment is: Does the number of turns of wire in an electromagnet effect its strength?