Anybody know the difference between house, techno and trance?

im a pro at electronic music but sometimes I be having trouble identifying them. they all sound the same do to them having the 4/4 drum beat, but in the flip side I know that house has disco, funk, and soul elements and is most of the time slow. techno is more faster, and uplifted, and the melodies are more industrialized and futuristic. lastly, trance is in between house and techno when it comes to speed and I tends to have more melody layers, its also more mind-stimulating then "make you want to dance" type of music like house and techno. this is the way I see it, but does anybody know more? and if you don't, feel free to express your hypothesis.