When water (h2o) freezes into ice, some of the properties have changed but the of the h2o is the same

This is a physical change takes place in this it freezes and then UN freezes when in a hot climate and freezes back up when in a cold climate. Hope this helps.    

Ifound this on google “your outer ear collects sound waves and reflects them into a tiny tube called the ear canal. at the end of the ear canal is a thin, skin-like membrane stretched tightly over the opening, called the eardrum.” i hope this you for what your looking for