Page 50 - e book prim 611
P. 50
Delta Modern Language Schools
Science department
Grade 6
1st term 2024- 2025
Heat can be transfered by :
Conduction Convection Radiation
▪ When objects with ▪ It happens due to ▪ It happens through
the movement of
different temperature liquid or gas. gases and space.
touch each other.
▪ In solids only.
The speed of heat transfer increases when
The difference in Surface area of Time of contact
temperature between objects increases. between objects
objects increases. 50 increases.