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Does the consumption of food involve chemical or physical change?
Wiki User
∙ 14y ago
Chewing the food is a physical change, but once the food mixes with saliva it becomes a chemical change. Digesting it is definitely a chemical change, because the stomache acids mix with the food and viola a chemical change.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoIt's all a chemical process from the beginning. Even when you are just masticating the food, enzymes in saliva start the digestive process. From there, the material is passed to the stomach where further chemical changes are made in order for you to utilize the locked up energy.
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