Final answer:
Zarika can turn sugar into a new material through a chemical reaction, such as when it is charred over high heat, transforming it into a new substance primarily composed of carbon. Other methods, like mixing or simple heating, may not result in such significant changes.
Step-by-step explanation:
Zarika can transform sugar into a new material through a chemical reaction. When sugar undergoes a chemical reaction such as combustion by heating, it can change into a completely different material. For example, if table sugar is placed in a spoon over a high flame, the heat provided by the flame causes the sugar to char and become a blackened mixture primarily composed of carbon; this is an indication of a chemical change where the chemical composition of the sugar is altered resulting in new substances with different properties.
Another instance is represented by the reaction of zinc with sulfur. When mixed at room temperature, they merely form a physical mixture. However, when this mixture is heated, a chemical process occurs, and zinc reacts with sulfur to form zinc sulfide (ZnS), a new chemical compound. This chemical reaction demonstrates the transformation of one type of matter into something different, which is a central feature of chemical changes.
Mixing sugar with other substances or simply heating it without reaching the point of combustion are processes that may not cause significant chemical changes akin to the transformation seen in chemical reactions. It is through chemical changes that compounds like sugar can be decomposed into their elemental forms or completely new compounds.