User talk:96.4.197.235

November 2015
Hello, I'm Mediavalia. I wanted to let you know that I undid one or more of your recent contributions to Science project because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Mediavalia talk 15:36, 4 November 2015 (UTC)
 * If this is a shared IP address, and you did not make the edits, consider creating an account for yourself so you can avoid further irrelevant notices.

September 2019
Hello, I'm Serols. I wanted to let you know that I reverted one of your recent contributions —specifically this edit to Homogeneous and heterogeneous mixtures— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you have any questions, you can ask for assistance at the Help desk. Thanks. Serols (talk) 17:48, 12 September 2019 (UTC)