Is a raisin bran cereal physical or chemical?

* Physical Changes: Alter the form or appearance of a substance but don't change its chemical composition.

* Examples: Cutting paper, freezing water, crushing rocks.

* Chemical Changes: Result in the formation of new substances with different chemical properties.

* Examples: Burning wood, rusting iron, baking a cake.

The process of making raisin bran cereal involves:

* Physical:

* Grains are ground: This changes their size and shape, but not their chemical makeup.

* Raisins are added: Raisins are already a processed form of grapes, so their chemical composition remains the same.

* Sugars and other ingredients are mixed in: These are simply being added to the mixture, not chemically reacting with the grains.

The cereal itself doesn't undergo a chemical change when you eat it. It's just broken down physically into smaller pieces during digestion.

Let me know if you have any other questions!