- Air is a bad conductor of heat.
- Heat is a form of energy that transfers from hotter objects to colder objects because of temperature difference.
- There are three different modes of heat transfer i.e. Conduction, Convection and Radiation.
- In conduction of heat, the molecules vibrate about a central point.
- In convection of heat, the molecules are free to move about.
- Radiation of heat can occur with or without a material medium.
- Convection occurs only in liquids and gases.
- The flow of heat by conduction is generally observed in case of Solids.
- Coastal breeze is produced by Convection.
- In sea breeze, Cold air move from sea towards land during day time.