Blowing Bubbles

It's science time again. This afternoon, we played catch-up on the science experiments that we haven't done since we returned. We talked about Plimsoll lines in salt vs. fresh water, how submarines work, and surface tension. After floating a needle on water, then sinking it by adding a drop of dish detergent, it was bubble time. This was the most fun by far -- blowing bubbles through our hands. I tried to capture Kristen in action, but the bubbles pop so quickly that it was difficult to get the camera focused on the right spot. Maybe I should have used manual focus instead of relying on the auto-focus feature. Anyway, here she is.