On Friday Fun Day at our house, normal routines are (mostly) suspended, for horseback riding lessons, picnics at the playground, and fun experiments and/or other activities (crafts, cooking, etc.).
This month, since we're delighted to have our Guardian Angels as our special patrons, we're focusing on flight!
We made these cute little toilet paper roll angels early in the week, and our goal for Friday was to figure out how to make them fly.
We weren't successful -- we decided they were too heavy for the method we were using -- but we did have some really fun balloon races just the same!
We used a straw, a string taped to the ceiling and anchored to floor, and a balloon. We didn't have an elongated balloon (which probably would've worked best), but we tried the 12" globe balloons and tiny water balloons (just with air, of course!) that we already had on hand.
We threaded the straws onto the string, blew up the balloons (being very careful not to let out any of air!), then taped the straw to the side of the balloon facing us. Finally we let go, and ... ZOOM! (Check out the determined looks on their faces -- this was serious!) :)
We had thought the larger balloons would have more air power and thus would be faster and go farther; however, the real speed and power came from the tiny water balloons. The 12" balloons sank under their own weight, and hardly moved up the string at all. (When we slid the straw through the little angels we had the same effect.)
It was fun to experiment a little bit with this, and the discussion included such basics as: how it is that the released air propels the balloon forward, why should we hold the balloon closed at the bottom and not at the top, as well as concepts that air, balloons and little paper angels have weight, all of which can affect the success of the experiment.
I found a link to a similar experiment here -- check it out!
Meanwhile, our little angels need another method in order to take flight. Next week we'll just have to try again! (Junie B. wants to try capping their heads and finding a way to force air into them. This idea has promise! Stay tuned!)
(The Chief, of course, wants to try attaching the angels to this ...)