2nd, 3rd and 4th classes discovered that a snowball os made of 175ml of water! It took over two hours to melt at room temperature.
19_water_temp
IMG_7816
https://www.flickr.com/photos/141387007@N04/46101936645/
IMG_7817
https://www.flickr.com/photos/141387007@N04/46101937995/