Tuesday, September 23, 2008
So when you drop things in a vacuum, everything falls at the same rate. Since no one actually lives in a vacuum, though, I thought it might be fun to let my daughter experiment with dropping things and seeing what falls fastest. We have some stairs with a railing, and we went part of the way up with 2 items at a time - like, a book and a wadded up piece of paper; a wadded up piece of paper and a flat sheet of paper; 2 balloons of different sizes; etc. We asked, "Which will fall faster?" and then we'd drop them and see. By the end, she was able to predict that smaller balloons fall faster than bigger balloons, which I thought was actually quite impressive.
Monday, September 22, 2008
We took a small bowl of water and some paper. We tore the paper and listened to the sound -" "rrrrrip." Then we soaked the paper in the water, and ripped it again - no sound! Oh, she loved it. We "took the sound away" for days.
Then we put a washcloth into the bowl, and when we picked it up the water was all gone! We rung out as much as we could and did it again. And we talked about how this is why we dry ourselves off with a towel after bath time - the towels take away the water.