User talk:Mr.69420

March 2022
Hello, I'm Isabelle Belato. I wanted to let you know that I reverted one of your recent contributions—specifically this edit to Conservation of mass—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. Isabelle 🔔 16:37, 30 March 2022 (UTC)

September 2022
Hello. This is a message to let you know that one or more of your recent contributions, such as the edit(s) you made to Humphry Davy, did not appear to be constructive and have been reverted. Please take some time to familiarise yourself with our policies and guidelines. You can find information about these at our welcome page which also provides further information about contributing constructively to this encyclopedia. If you only meant to make test edits, please use your sandbox for that. If you think I made a mistake, or if you have any questions, you may leave a message on my talk page. Thank you. Lolkikmoddi (talk) 21:31, 22 September 2022 (UTC)

October 2022
Hello, and welcome to Wikipedia. This is a message letting you know that one or more of your recent edits to Conservation of mass have been undone by an automated computer program called ClueBot NG.

Thank you. ClueBot NG (talk) 21:00, 3 October 2022 (UTC)
 * ClueBot NG makes very few mistakes, but it does happen. If you believe the change you made was constructive, please read about it, [ report it here], remove this message from your talk page, and then make the edit again.
 * For help, take a look at the introduction.
 * The following is the log entry regarding this message: Conservation of mass was changed by Mr.69420 (u) (t) ANN scored at 0.913777 on 2022-10-03T21:00:56+00:00