This is a worksheet that I made that goes along with an interactive that I found on the following website: http://media.pearsoncmg.com/bc/bc_0media_chem/chem_sim/html5/Electro/Electro.php.

In this activity, students will look at an electrolysis setup, and observe changes in mass and appearance of the metal electrodes as an electric current is passed through the system. Students will record data, and answer questions along the way as they go through the interactive. This activity would be perfect for any high school level chemistry class covering electrochemistry.