Page 12 - E-Science Prim.6 2024-2025 U2_Handy
P. 12
Concept 2.2: Heat Transfer
? Heat is an essential component (energy) of life on earth.
? It is an energy form and it can’t be lost but it is only
transferred.
? We can use heat in cooking, warming, drying and industries as
……..
? Any substance has thermal energy even the cold substances as
molecules always move.
? It can transfer from higher body temperature to lower body
temperature causing:
Molecules in cup (higher
temperature) will move slower.
Molecules in hands (lower
temperature) will move faster.
Rock absorbs Molecules Lizard skin Molecules of Molecules of
thermal energy of rock absorbs lizard skin will rock will
from the sun
moves faster thermal energy move faster move slower.
First Term from the rock.
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