Questions From A Grandson

The other day my grandson asked me how a boat floats and I told him I really didn't know. Later he asked how a fish breaths underwater and I told him I really didn't know. He then asked me what makes the sky blue and I said I didn't really know. Then he asked, "Poppy do you mind me asking you all these questions?" I told him, "Of course not, if you don't ask questions, you'll never learn anything."