Source: Extra Practice
Explain why cooking utensils are typically made of metals, while their handles are made of wood or plastic.
Model Answer
Cooking utensils are made of metals because metals are excellent conductors of heat, transferring it efficiently to cook food quickly. Handles are made of wood or plastic, which are poor conductors (insulators). This prevents heat reaching the hand, allowing safe utensil handling without burns.
Explanation
Key points: Metals as good heat conductors, wood/plastic as poor heat conductors (insulators), safety aspect.