Page 15 - E-Science Prim.6 2024-2025 U2_Handy

Transfer of heat: Heat can transfer by three ways:

1-Conduction 2-Convection 3- Radiation

Conduction Convection Radiation

Transfer of heat Transfer of heat due to Transfer of heat in
through touching gases or liquids movement space or air.
solids with different where hot molecules have
temperature if from low density rise upwards (without any need of
the higher to lower while cold molecules have medium.
temperature high density fall down
The way by which The way by which heat “Electromagnetic
heat travel through travel through gases and waves”
solid materials liquids
Cooling pads in fever Cooking noodles and water The way by which
in a pot. heat travels through
space and gases

Hands get close to a
fire, you feel warm.

They get hot and rise while You feel the hot of
the cold at surface moves the sun.
down and so on.

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First Term