Directions: Read the paragraph and identify the correct words that fit in the given sentences in the box below. Liquid constant completely solid heterogeneous Boiling point different distilled water homogeneous melting pure substance Melting point During Pure substances are (1) in appearance. During boiling the temperature of a (2) (2 changes at the start then it becomes (3) melting, a substance melts (4) within a short time. To determine a (5) sample if it is a pure substance , you should teenit using its boiling point; while if it is a (6) sample, its melting point is the best way to test.​