https://www.pitara.com/tags/milk-science/Recent content in Milk Science on Pitara Kids NetworkHugoen-usSat, 13 Jun 2026 21:46:31 +0530https://www.pitara.com/science-for-kids/5ws-and-h/why-does-milk-spill-over-when-it-boils/Wed, 09 Oct 2002 20:50:36 +0000https://www.pitara.com/science-for-kids/5ws-and-h/why-does-milk-spill-over-when-it-boils/<p>How many times have you seen milk boil and spill over, and wondered why this happens? To answer this question we have to know a little more about the composition of milk.</p> <p><strong>Milk and its composition</strong><br> Unlike water, milk is not a simple liquid. It is a colloid and contains many substances in suspended form. These substances are mainly protein, sugar and fat. When milk is heated slowly, the proteins and fat get separated. Since they are lighter than the milk they collect on the surface in the form of a layer called cream.</p>