Is defrosting meat a chemical change?

* Chemical change: Involves the formation of new substances with different chemical compositions. This often involves breaking and forming new chemical bonds.

* Physical change: Changes the form or appearance of a substance but not its chemical composition.

When you defrost meat, you're simply changing its state from frozen (solid) to thawed (liquid or semi-solid). The water molecules in the meat are changing arrangement, but the meat itself remains the same chemically.

Here are some examples of chemical changes in food:

* Cooking: This involves chemical reactions that change the composition of the food, such as proteins denaturing.

* Spoiling: Microorganisms break down the food, changing its chemical composition and causing it to become inedible.

Let me know if you have any other questions!