Melting point: Melting point, temperature at which the solid and liquid forms of a pure substance can exist in equilibrium. As heat is applied to a solid, its temperature will increase until the melting point is reached. More heat then will convert the solid into a liquid with no temperature change.
Overall, in humans, the large intestine is about 1.5 metres (5 ft) long, which is about one-fifth of the whole length of the gastrointestinal tract.
The small intestine on average is about 16 to 20 feet in adults (if it were to be stretched out) but it is only about 1 inch in diameter, and can hold food for between 1 and 4 hours to enable digestion and absorption of nutrients and minerals.