Page 27 - Finalll Science BB Prep2 t1 2025_Neat

2- The type of the substance (on change in temperature)

1 2 1 2

Controlled variable:

Mass of oil & water
Heat quantity (time)
Independent variable:

Type of substance
Dependent variable:
The amount of change in
temperature

Observation Temperature of water in 1 = The temperature of oil in 2 is
that of oil in 2 despite their higher than that of water in 1
different typ s e

Conclusion The amount of change in temperature of equal masses of
different substances varies when they
gain / lose the same quantity of heat

Explanation When 2 equal masses of oil & water are heated by the same
source in equal time, the temperature of oil rises greater

than its rising of water
As the specific heat of oil is less than specific heat of

water

First Term 46