The temperature at which a substance transforms from a solid to a liquid or from a liquid to a solid is known as that substance's melting point.
(The temperature; transforms; from a solid; to a liquid or from a liquid to a solid) (The temperature at which a substance transforms from a solid to a liquid or from a liquid to a solid; is known; as that substance's melting point)
The temperature The temperature at which a substance transforms from a solid to a liquid or from a liquid to a solid
transforms is known
from a solid to a liquid or from a liquid to a solid
as that substance's melting point