Physical vs. Chemical Changes in Food: Understanding Food Molding

Molding food is considered a physical change. When you mold food, you are simply changing its shape and appearance. The chemical composition of the food remains the same.

Here are some examples of physical changes:

- Cutting food into different shapes

- Rolling dough into different shapes

- Kneading dough

- Whisking eggs

All of these changes involve changing the physical properties of the food, but the chemical composition remains the same.

In contrast, a chemical change occurs when the chemical composition of a substance changes. This can happen when two or more substances react with each other, or when a substance is exposed to heat or light.

Here are some examples of chemical changes:

- Cooking food

- Baking bread

- Frying eggs

- Making yogurt

All of these changes involve a change in the chemical composition of the food.