Substances that are burnt to give heat are called _________.

Heat energy can be transferred in ________ ways .

Materials expand on heating.This is called _____________.

Heat is :

The clinical thermometer measures only from _________ to _________.

________ is a process of heat transfer in which heat travels from molecule to molecule from a hot region to a cold region.

____________ is a good conductor of heat.

When rice is placed in water,and heated ,it gets cooked.It is a __________ change.

Inside the thermometers there is a very narrow tube called a __________ tube.

_________ is a liquid metal .