* Atoms: Atoms are the fundamental building blocks of all matter, including your body. They are incredibly small particles that make up molecules. These molecules then form larger structures, such as proteins, carbohydrates, and lipids.

* Cells: Cells are the basic, functional units of life. They are made up of various molecules (composed of atoms) working together to perform specific tasks. Think of cells like tiny factories that build and maintain your body.

So, you could say that atoms are like the ingredients in a cake, while cells are like the individual cakes.

To sum it up:

* Atoms are the smallest, most basic units.

* Cells are made up of many atoms organized into complex molecules.

* Your body is made up of trillions of cells, each of which is made up of countless atoms.