1. Concepts Group

2. Small quantitative changes lead to large qualitative differences
Individual →Group →Large group Or
When does an object stop being a collection of individual atoms/molecules and becomes a “material”

3. Interactions Gravity Electro-magnetic Weak nuclear Strong nuclear
Macro
Micro
Nano
Atomic Molecular

4. Models Macro Micro Nano Atomic Molecular Classical physics Cells
Statistical Mechanics …
Quantum Mechanics
Macro
Micro
Nano
Atomic Molecular

6. Tools for characterization
Bounce
Poke
Dent
Stress-strain
Quantum tunnel