* Heterogeneous mixtures have components that are not evenly distributed throughout. You can see the different parts of the mixture.

* Homogeneous mixtures have components that are evenly distributed, making the mixture appear uniform.

Biscuits contain ingredients like flour, sugar, butter, and baking powder. These ingredients are not evenly distributed throughout the biscuit. For example, you might find a piece with more butter or a piece with more flour. You can visually identify the different components in a biscuit.