When I looked up information about our solar bag yesterday, it said that the air outside needed to be somewhat cool, so that the air in the bag would heat to a significantly higher temperature.
Mentioning that that would be difficult to do when it was high noon... so we put off the experiment.
This morning I showed the children the video, and since they were very excited about it, we grabbed a few things and headed Early-As-Possible-For-Us to the park. (11 am.)
Dude. It was the coolest thing.
Prob'ly one of my all-time favorite investigations.
It works via solar energy heating up the air molecules inside the bag, then the molecules bounce faster and faster, and away from eachother... thus the bag starts lifting off the ground.
Ours started lifting as soon as we filled it up.
It got quite a bit of attention, as well. (I don't know what those that lived near the park thought...) :)
Before too long we were about as heated as our bag, so home, to the pool!
"Mom... will you write "Grandma" on the back of this? See? Hot... cold.... perfect.... and surprised!"
"Oh, Maddie... it's wonderful... I love it! So much."
(That dripping "hot" picture is what we looked and felt like after chasing our solar bag and its string up and down hills at the park.... :) oof)
Pink!... of course... and aquamarine. We'll see what comes of That, in a few days.
Pizza and a movie??? Aaaah!--a plan!
Times four? Five??
Finish cleaning the cricket house....
...and family swim. All four of us.
Just about time to head inside for Movie (documentary) time, I think.
Prob'ly we'll see you tomorrow.