Fill in the Blanks Properties of woodOnline version General properties of wood. by Manuel Jesús García Rodríguez 1 Age appreciated Ecological forces insulator dense Type Porosity hard Properties of natural wood depend on the following factors : a ) of tree . b ) Environment . c ) Soil . d ) of tree . e ) Composition of the wood . The most characteristic properties of wood are : a ) Hardness . Many woods are , but others are soft . b ) Density . Wood is less than water , so it floats . c ) Conductivity . Dry wood is a good electrical and thermal . d ) . Wood can absorb or emit liquids or gases because it has small holes called pores . e ) Mechanical resistance . Wood has good mechanical resistance against the of traction , compression or bending . f ) Colour and grain . Wood can have different colours and grains , so it is a very material . g ) properties . Wood is renewable , recyclable and biodegradable .