The boiling point of a substance is that temperature when the gas state of the substance forms bubbles in its liquid.
(The boiling point of a substance; is; that temperature when the gas state of the substance forms bubbles in its liquid) (the gas state of the substance forms; bubbles; L:in its liquid)
The boiling point of a substance the gas state of the substance forms
is bubbles
that temperature when the gas state of the substance forms bubbles in its liquid
L:in its liquid