شرح علوم متكاملة لغات الصف الاول الثانوي لغات - الفصل الدراسي الثاني
شرح علوم متكاملة اولي ثانوي لغات - ترم ثاني
Integrated Sciences for Grade 10 (First Year of Secondary School) -Second Semester
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in this Lesson:
Mineral
' ' i It is inorganic solid substance exist in nature (naturally formed), j
! has fixed or semi-fixed chemical composition and a regular i
i crystalline structure giving it distinctive physical properties. i
Hardness
It _is a physical property that represents _the _resistance degree of a _mineral or_ a rock to scratching
Examples for the hardness of some minerals:
The importance of studying the effect of the hardness of minerals on the rocks formed
from them:
Specific gravity (Relative density)
1 The ratio of the mass of a specific volume of a material to the mass of the same volume !
! of water at a temperature of 4°C_ !
The importance of determining the specific gravity of rocks:
The role of minerals in Earth's stability and]continuity
The role of minerals in modern industries
Examples from rock cycle in nature
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