when an plant ice , physical matter is converted to mechanical matter
solid_animal_matter is organic_matter. chemical_reaction_intentional is physical_destruction_event. chemical_reaction_intentional is physical_creation_event. matter is energy. chemical_reaction is physical_event. chemical_process is not physical_event. state_of_matter is chemical_phenomenon. galvanized_metal is artificial_substance. chemical_process is physical_event. ice is material.