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Rocks And Minerals Class 5 Worksheet Science

Q1: Multiple Choice Questions.


(i) Which of the following is a type of rock?
(a) Granite
(b) Diamond
(c) Iron
(d) Sand
Ans: 
(a)
Granite is a type of igneous rock formed from the cooling of magma or lava.

(ii) Minerals are made up of:
(a) One element
(b) Two elements
(c) Three elements
(d) Four or more elements

Ans: (b)
Minerals are made up of two or more elements combined together in a specific arrangement.

(iii) Which type of rock is formed from cooled magma or lava?
(a) Igneous
(b) Sedimentary
(c) Metamorphic
(d) None of the above

Ans: (a)
Igneous rocks are formed from the cooling and solidification of magma or lava.

(iv) Which of the following is a common mineral found in rocks?
(a) Quartz
(b) Gold
(c) Silver
(d) Copper

Ans: (a)
Quartz is a common mineral found in rocks. It is made up of silicon and oxygen and is found in many types of rocks, including granite and sandstone.

(v) Which type of rock is formed by the compaction and cementation of sediment?
(a) Igneous
(b) Sedimentary
(c) Metamorphic
(d) None of the above
Ans: (b)
Sedimentary rocks are formed by the compaction and cementation of sediment, which is made up of small particles of rocks, minerals, and organic materials.

Q2: Fill in the Blanks.

(i) __________ is the process of breaking down rocks into smaller particles.
Ans: Weathering is the process of breaking down rocks into smaller particles.

(ii) __________ is the hardest mineral found on Earth.
Ans: Diamond is the hardest mineral found on Earth.

(iii) Rocks that are formed from the accumulation of sediments are called __________ rocks.
Ans: Rocks that are formed from the accumulation of sediments are called Sedimentary rocks.

(iv) __________ rock is formed when magma or lava cools and solidifies.
Ans: Igneous rock is formed when magma or lava cools and solidifies.

(v) The process of changing one type of rock into another is called the __________ cycle.
Ans: The process of changing one type of rock into another is called the Rock cycle.
Rocks And Minerals Class 5 Worksheet Science

Q3: Match the Column.

Rocks And Minerals Class 5 Worksheet Science

Ans: (i) : (b) Granite
(ii) : (d) Sandstone
(iii) : (c) Gneiss
(iv) : (a) Weathering
(v) : (e) Rock Cycle

Q4: True or False.

(i) Minerals are naturally occurring substances found in the Earth's crust.
Ans: True
Minerals are naturally occurring substances found in the Earth's crust. They are formed by geological processes and have a definite chemical composition and crystal structure.

(ii) Magma is molten rock material found beneath the Earth's surface.
Ans: True
Magma is molten rock material found beneath the Earth's surface. When magma reaches the surface, it is called lava.

(iii) Marble is an example of an igneous rock.
Ans: False
Marble is an example of a metamorphic rock, not an igneous rock. It is formed from the metamorphism of limestone or dolomite.
Rocks And Minerals Class 5 Worksheet Science

(iv) All rocks are made up of minerals.
Ans: True
All rocks are made up of minerals. The minerals determine the properties and composition of the rock.

(v) Fossils can be found in metamorphic rocks.
Ans: False
Fossils are usually found in sedimentary rocks, not metamorphic rocks. Fossils are the remains or traces of ancient plants and animals that have been preserved in rock formations.

Q5: Short Answer Questions.

(i) What are the three types of rocks? Give one example for each.
Ans: The three types of rocks are igneous, sedimentary, and metamorphic. Examples: Igneous - Granite; Sedimentary - Sandstone; Metamorphic - Marble.

(ii) What is the difference between a rock and a mineral?
Ans: A rock is a naturally occurring solid substance composed of one or more minerals or mineraloids. Minerals are naturally occurring inorganic substances with a definite chemical composition and crystalline structure.

(iii) How are metamorphic rocks formed?
Ans: Metamorphic rocks are formed when existing rocks are subjected to heat, pressure, or chemically active fluids, causing their minerals to recrystallize or change in composition. This process changes the original rock into a new type of rock.
Rocks And Minerals Class 5 Worksheet Science

(iv) What is the process of weathering?
Ans: Weathering is the process of breaking down rocks, soils, and minerals through contact with the Earth's atmosphere, water, and living organisms. It can be caused by physical, chemical, or biological processes.

(v) What are the uses of rocks and minerals?
Ans: Rocks and minerals have various uses, including building materials (e.g., marble, granite), sources of metals (e.g., copper, iron), and gemstones (e.g., diamond, ruby). Minerals such as gypsum and salt are used in agriculture, while rocks like limestone and sandstone are used in construction.

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FAQs on Rocks And Minerals Class 5 Worksheet Science

1. What are rocks and minerals?
Ans. Rocks are solid materials made up of one or more minerals, whereas minerals are naturally occurring inorganic substances with a specific chemical composition and crystal structure.
2. How are rocks formed?
Ans. Rocks are formed through different processes. Igneous rocks are formed when molten rock cools and solidifies. Sedimentary rocks are formed when particles of other rocks or organic materials are compacted and cemented together. Metamorphic rocks are formed by the transformation of pre-existing rocks through heat and pressure.
3. What are the differences between rocks and minerals?
Ans. Rocks are made up of minerals, but not all minerals are rocks. Rocks are larger and composed of various minerals, whereas minerals are individual substances with specific properties. Rocks can be classified into different types based on their formation, while minerals are classified based on their chemical composition.
4. How are minerals identified?
Ans. Minerals can be identified by their physical properties such as color, hardness, luster, streak, cleavage, and crystal shape. They can also be identified through various tests, such as the acid test, magnetism test, or by using specialized tools like a microscope or a spectrometer.
5. Why are rocks and minerals important?
Ans. Rocks and minerals have various uses and importance. They are used in construction as building materials, in industries for manufacturing purposes, and in the production of jewelry. They also play a crucial role in understanding the Earth's history and geological processes. Additionally, minerals are essential for our body's nutrition and are used in many products we use daily, including electronics and cosmetics.
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