Students explore water absorbency in this fast-paced game.
Usually, when you spill water on your favourite drawing, it is not fun. In this game, however, the point of the game is to see whose paper gets the soggiest.
Absorbency is a material's ability to hold or soak up liquid. Little air pockets in the material will hold the water until it is squeezed out.
Liquid enters the material via capillary action (the adhesive force between the liquid and the material is greater than the cohesive force keeping the liquid together).
Fun Fact: A natural sponge can absorb up to 150 percent of its own weight in water!