Curriculum
Course: Science — Second Preparatory
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Curriculum

Science — Second Preparatory

Unit 1: Matter and Energy

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Unit 2: Matter and Chemical Reactions

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Unit 3: Energy Flow in Photosynthesis and Respiration

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Unit 4: Geological Processes

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Quiz

Formation of Minerals and Soil — Lesson quiz

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  • Questions count: 6
  • Passing grade: 60%
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1.
Which mineral has rank 7 on Mohs' scale?
Calcite
Gypsum
Quartz
Diamond
2.
What is the difference between a mineral and a rock in terms of chemical composition?
A mineral is a mixture of rocks, while a rock has a fixed composition
Both have a fixed, definite chemical composition
Both are mixtures of minerals with no fixed composition
A mineral has a fixed, definite composition, while a rock is a mixture of minerals with no fixed composition
3.
How are large crystals formed from magma?
By cooling the magma slowly
By cooling the magma very quickly
By heating the magma intensely
By adding cold water directly to it
4.
Which part of the soil comes from the remains of plants and animals and increases its fertility?
Sand
Organic matter (humus)
Clay
Gravel
5.
In the soil separation experiment, which part settles first?
Clay, because it has the largest particles
Humus, because it is the lightest component
Sand, because it has the largest particles
Water, because it is the heaviest component
6.
Why is Nile Valley soil more fertile than desert soil?
Because it contains pure sand only
Because it contains no organic matter at all
Because the desert is flooded by Nile water every day
Because it contains Nile silt, which is rich in minerals and organic matter
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