Kirchhoff's First Law - A Level (and GCSE) Physics

What is Kirchhoff's first law? How do I even pronounce Kirchhoff? Not sure about that second question, but I'm confident that my demonstration in this video helps outline what Kirchhoff's first law is all about. Useful timestamps below: 00:00 - Trying to pronounce Kirchhoff 00:15 - Hello! 00:18 - Kirchhoff's First Law 00:30 - Demonstrating conservation of current with Shreddies and cutlery 01:10 - The key point of Kirchhoff's First Law 01:38 - Example question 1 02.09 - Example question 2