noah: mommy, why is it raining?
me: well honey, God thought the trees and grass were thirsty, so he made it rain.
noah (very matter of factly): well, i should have gone outside when daddy got home and watered the trees and grass so that it wouldn't rain.
me: well, you could have but then other peoples' trees and grass would still be thirsty.
noah: why? (btw - this is his favorite question)
me: well noah, the sun soaks up all the water from everybody's yards each day so they get thirsty at night and need rain to help them grow.
noah: oh, okay!