Matter & Energy

Matter is composed of atoms or groups of atoms called molecules. The arrangement of particles in a material depends on the physical state of the substance. In a solid, particles form a compact structure that resists flow. Particles in a liquid have more energy than those in a solid. They can flow past one another, but they remain close. Particles in a gas have the most energy. They move rapidly and are separated from one another by relatively large distances.


Malt, substance obtained by allowing grain, particularly barley, to soften in water and germinate. The enzyme diastase, developed during the germination process, catalyzes the hydrolysis of starch to the sugar maltose. Malt, processed by drying in a kiln and roasting, is used in brewing and distilling alcoholic beverages. It has a high protein and carbohydrate content and is used to add nutritive value to drinks.