Procedure:

• i) Assemble the apparatus with the rings, thermometer and ball guides in position.
• ii) Fill the beaker with boiled distilled water at a temperature 5.0 ± 0.5oC per minute.
• iii) With the help of a stirrer, stir the liquid and apply heat to the beaker at a temperature of 5.0 ± 0.5oC per minute.
• iv) Apply heat until the material softens and allow the ball to pass through the ring.
• v) Record the temperature at which the ball touches the bottom, which is nothing but the softening point of that material.