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.
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