English Conjunctions: but vs although

Target Language or Knowledge:

I got up early today but I missed the bus! I was late for school although I got up early today. She ordered a coffee, but they only had tea left. We asked him for directions, but he didn't know where the cinema was. I took an umbrella although it wasn't raining. He passed the test although he didn't study very hard. We all like Mexican food but the restaurant is too expensive. They sent her a card although they didn't know her well. We arrived late but the theatre let us in. James drove slowly although the speed limit was 40mph.