Author’s last name, First name (if available). "Title of the Video." Name of the Website [YouTube], Uploader/Publisher, Date of content, URL of page. Access Date.

Example:

Grades 9-12

This is what goes in your Works Cited:

Dainis, Alex. "DNA in Space." YouTube, uploaded by Science! The Show, 10 April, 2020, www.youtube.com/watch?v=ZKgkMCJgDfY. Accessed 7 May 2020.

This is what your in-text citation should look like when you paraphrase or quote from this video:

(Dainis 5:35-5:41)

In this example, you include the time range, so that your reader can see what portion of the video you used for your quote/paraphrase.