User talk:216.23.186.213

December 2020
Hello, I'm Materialscientist. I noticed that you made a change to an article, Golden Valley High School (Santa Clarita, California), but you didn't provide a source. I’ve removed it for now, but if you’d like to include a citation to a reliable source and re-add it, please do so! If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Materialscientist (talk) 13:19, 13 December 2020 (UTC)
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October 2021
Hello, I'm Materialscientist. I wanted to let you know that I reverted one of your recent contributions—specifically this edit to DNR—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. Materialscientist (talk) 14:27, 19 October 2021 (UTC)