Material Cards 4: Seaweed

Seaweed (or its Japanese name "Nori") used in making sushi is made from red alga. While dry, seaweed is very delicate and depending on the type of seaweed, can be brittle or softer and easier to roll. The seaweed is somewhat permeable and tears easily but is incredibly light weight. 

Seaweed absorbs moisture very well and can become mushy and soft. However, the seaweed sticks together very well when damp or wet. This property allows for pieces to be joined without other connection method which may tear or weigh down the seaweed. The seaweed is also far more flexible and stretchy when wet. It cannot withstand a lot of strain but will hold better than dry seaweed. 
Seaweed is very flammable and does not react well with the heat, hence, we had to be careful about its proximity to the tea light candle in our vehicles.

W Y Chan