Archive · 27 Sep 2025
Petrichor: How the Earthy Scent Affects Us
Have you ever noticed a nice smell when it rains?
That smell is called petrichor!
It's caused by tiny water drops hitting the soil.
The smell comes from a special molecule called geosmin, which is made by a tiny bug called Streptomyces.
When you smell petrichor, it can make you feel happy and calm!
The soothing sound of rain and the fresh air it brings helps too!
Petrichor is the earthy scent produced when rain falls on dry soil.
The scent is often associated with the arrival of the monsoon season.
Petrichor is produced by a molecule called geosmin.
Geosmin is produced by a bacterium called Streptomyces.
The smell of petrichor can have a calming effect.
- Who
- Not Applicable
- What
- Petrichor is an earthy scent produced when rain falls on soil.
- When
- When rain falls on dry soil.
- Where
- Not Applicable
- Why
- It has a calming effect on people and can change their mood.
- Scent Name
- Petrichor
- Cause of Scent
- Rain on soil
- Molecule Name
- Geosmin
- Producer of Molecule
- Streptomyces bacterium
- Effect
- Calming, mood-lifting