Found an interesting channel that publishes videos that are from a TV show called かがくdeムチャミタス. Basically it’s one of those education science related shows that some of us may have watched as kids on Discovery Channel etc.
Quite interesting because they keep the vocabulary simple, and generally put the word on the screen when it’s something new or some technical term. Plus if you’re a curious person, then some of the stuff they talk about is genuinely interesting!