Yesterday I built my own electroscope. The process was pretty easy and simple, and testing if it worked was really fun and cool. The materials I used to build it were thin cardboard, a glass cup, tin foil, a paper clip, and some tape. Unfortunately, I didn’t have a balloon so I used a plastic water bottle instead. Since the plastic water bottle isn’t as strong as the balloon, the experiment didn’t really work. It was an interesting experience to build the electroscope, and I’m sure it would have been a lot more exciting if I had a balloon. Below is a picture of my electroscope.