Given a list of scientific concepts, categorize them into physical, chemical and biological.
* atomic structure
* photosynthesis
* Laws of motion
Atomic structure is a physical concept.

Photosynthesis is a biological concept.

Laws of motion is a physical concept.
Complete the following task based on the instruction and optional input provided.### Instruction:
Given a list of scientific concepts, categorize them into physical, chemical and biological.

### Input:
* atomic structure
* photosynthesis
* Laws of motion

### Output:
Atomic structure is a physical concept.

Photosynthesis is a biological concept.

Laws of motion is a physical concept.