Worksheet: Minerals and Rocks | Geography Class 11 - Humanities/Arts PDF Download

Fill in the Blanks

Q1: A mineral is a naturally occurring __________ and inorganic substance.

Q2: Some single-element minerals include __________ and gold.

Q3: The most abundant elements in the Earth's crust are oxygen, silicon, __________, and iron.

Q4: The basic source of all minerals is the __________ in the interior of the Earth.

Q5: When magma cools and solidifies, it forms __________.

Q6: Cleavage is the tendency of a mineral to break along specific __________.

Q7: __________ is the appearance of a material without regard to color.

Q8: Streak is the color of the ground powder of a mineral when it is __________.

Q9: Transparent minerals allow __________ to pass through.

Q10: Petrology is the scientific study of __________.

Assertion and Reason Based

Q1: Assertion: Quartz is a hard mineral virtually insoluble in water.
Reason: Quartz is composed of calcium and aluminum.
(a) If both the assertion and reason are true and the reason is a correct explanation of the assertion.
(b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
(c) If the assertion is true, but the reason is false.
(d) If both the assertion and reason are false.

Q2: Assertion: Metamorphism occurs due to pressure, volume, and temperature changes.
Reason: Dynamic metamorphism involves appreciable chemical changes.
(a) If both the assertion and reason are true and the reason is a correct explanation of the assertion.
(b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
(c) If the assertion is true, but the reason is false.
(d) If both the assertion and reason are false.

Q3: Assertion: Igneous rocks are classified based on texture.
Reason: Sudden cooling results in large mineral grains in igneous rocks.
(a) If both the assertion and reason are true and the reason is a correct explanation of the assertion.
(b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
(c) If the assertion is true, but the reason is false.
(d) If both the assertion and reason are false.

Q4: Assertion: Sedimentary rocks can be classified into mechanically formed, organically formed, and chemically formed.
Reason: Sedimentary rocks form from the cooling of magma.
(a) If both the assertion and reason are true and the reason is a correct explanation of the assertion.
(b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
(c) If the assertion is true, but the reason is false.
(d) If both the assertion and reason are false.

Q5: Assertion: The crustal rocks can be carried down into the mantle through the subduction process.
Reason: The mantle is located on the Earth's surface.
(a) If both the assertion and reason are true and the reason is a correct explanation of the assertion.
(b) If both the assertion and reason are true but the reason is not a correct explanation of the assertion.
(c) If the assertion is true, but the reason is false.
(d) If both the assertion and reason are false.

Very Short Answer Type Questions

Q1: What is the composition of feldspar?

Q2: What is the primary source of all minerals?

Q3: Name one mineral that can be found in solid, liquid, and gaseous forms.

Q4: Define cleavage in minerals.

Q5: Give an example of a non-metallic mineral.

Q6: What is the process of rocks breaking up into various-sized fragments due to denudational agents?

Q7: Name one rock that is classified as an igneous rock.

Q8: What is the word used to describe the change of form in rocks?

Q9: How do sedimentary rocks form?

Q10: What is the parent material of soils derived from?

Short Answer Type Questions

Q1: Explain the difference between cleavage and fracture in minerals.

Q2: Describe the process of lithification in sedimentary rock formation.

Q3: Discuss the three major groups of sedimentary rocks based on their mode of formation.

Q4: What are the major types of metamorphism, and how do they differ?

Q5: Explain how the rock cycle works and the transformations rocks undergo.

Q6: Give examples of precious metals and non-ferrous metals found in metallic minerals.

Q7: Explain the difference between foliated and non-foliated metamorphic rocks.

Q8: How are minerals and rocks significant in a geographer's study of the Earth's surface?

Long Answer Type Questions

Q1: Discuss the physical characteristics of minerals, including color, luster, hardness, and cleavage, with examples.

Q2: Describe the major minerals and their characteristics, focusing on feldspar, quartz, pyroxene, amphibole, mica, and olivine.

Q3: Explain the classification of rocks based on their mode of formation, discussing igneous, sedimentary, and metamorphic rocks in detail.

Q4: Elaborate on the rock cycle and how it relates to the transformation of rocks from one type to another. Include the role of igneous rocks in this cycle.