Avery looks up at the sky and says to me..

"Mom...do you think that cloud is a cumulous or a sirius?"

Me: "Um, Avery...I'm not sure...what's the difference?"

Avery: "A cumulous cloud brings you rain sometimes, and the sirius clouds don't bring rain, they are just in the middle and the bottom of the sky."

I am almost convinced that my almost 7 year old is smarter than I am...