This is a great first lab for an electricity unit. I like to give students a little background about the Periodic Table of Elements before starting electricity. This is so I can let them know that electricity is made up of particles with mass called electrons. It is not a wave, and it is not part of the electro-magnetic spectrum. Electricity is a electrons.
With this lab, you can start talking about electrons and electrical charge, with like charges repelling and opposite charges attracting. This attraction is similar to the weak force. These two forces are believed to be manifestations of what is called by some the electroweak force.
There is a second lab that I do after this one and it further investigates static electric attractions and in it, students make Leyden Jars to store electrons. These Leyden jars can be charged with just a balloon, and they work great.
I have included both an editable Word file and PDF files. I have included a rubric for you to use or modify. The separate rubric files are the latest versions I am using now. The Lab PDF also has an older rubric attached which may better suit your needs. Only the latest Word file is editable.
The reading that I do before or after this lab is not mine to share, but it is a basic explanation of atomic structure and static electricity. It is not specific to the lab, and you can probably use whatever you have available or something online.