This sound is from Steve Mould Soundboard

Steve Mould is a British educational YouTuber, author, and science presenter. He is most notable for making science-related educational videos on his YouTube channel. Mould was born 5 October 1978, and is now a British author and author. His YouTube channel has more than 1,000,000 followers.
See also: Chain fountain, Bob Mould, Matt Parker, Helen Arney, Mould (surname), and Nine Lessons and Carols for Godless People.