science
Grade-4-
Easy
Question
Which of the following is an intrusive igneous rock?
- Gneiss
- Pegmatite
- Marble
- None of these
Hint:
Pegmatite is an igneous rock.
The correct answer is: Pegmatite
- Pegmatite is an intrusive igneous rock formed by the cooling and crystallization of molten rock.
- It has the same silicic composition as that of granite.
- It has large crystals which are interlocking and a coarse texture.
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Which of the following rock has a smooth texture?
Granite
Pumice
Basalt
Obsidian
Which of the following rock has a smooth texture?
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Granite
Pumice
Basalt
Obsidian
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________ is an example of an igneous rock.
- Quartzite and limestone
- Marble and quartzite
- Granite
- Anthracite
________ is an example of an igneous rock.
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- Quartzite and limestone
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- Anthracite
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Shale is an example of __________ rock.
- Metamorphic
- Magma
- Igneous
- Sedimentary
Shale is an example of __________ rock.
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- Metamorphic
- Magma
- Igneous
- Sedimentary
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On melting at _______, rock becomes magma.
- High temperature
- Low temperature
- High wind
- Low pressure
On melting at _______, rock becomes magma.
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- High temperature
- Low temperature
- High wind
- Low pressure
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Match the following:
- 1, 3, 4 – a; 2 – b
- 1 – a; 2, 3, 4 – b
- 1, 2, 3 – a; 4 -b
- 2 – a; 1, 3, 4 - b
Match the following:
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- 1, 3, 4 – a; 2 – b
- 1 – a; 2, 3, 4 – b
- 1, 2, 3 – a; 4 -b
- 2 – a; 1, 3, 4 - b
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________ is a sudden shaking of the earth’s crust.
- Hurricane
- Tornado
- Earthquake
- Storm
________ is a sudden shaking of the earth’s crust.
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- Hurricane
- Tornado
- Earthquake
- Storm
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Convection currents occur in_________.
- Crust
- Mantle (Aesthenosphere)
- Inner core
- Outer core
Convection currents occur in_________.
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- Crust
- Mantle (Aesthenosphere)
- Inner core
- Outer core
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___________ part of earth can be damaged by erosion and weathering.
- Crust
- Mantle
- Inner core
- Outer core
___________ part of earth can be damaged by erosion and weathering.
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- Crust
- Mantle
- Inner core
- Outer core
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Mushroom rocks are formed by__________.
- Water weathering
- Ice weathering
- Wind weathering
- None of these
Mushroom rocks are formed by__________.
scienceGrade-4-
- Water weathering
- Ice weathering
- Wind weathering
- None of these
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Which of the following statement is correct?
- Formation of intrusive igneous rocks takes a few days.
- Formation intrusive rocks take many years to form.
- Formation of extrusive igneous rocks takes a few minutes.
- None of these
Which of the following statement is correct?
scienceGrade-4-
- Formation of intrusive igneous rocks takes a few days.
- Formation intrusive rocks take many years to form.
- Formation of extrusive igneous rocks takes a few minutes.
- None of these
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Basalt is a_________.
- Igneous rock
- Limestone
- Inner layer of the Earth
- Red light
Basalt is a_________.
scienceGrade-4-
- Igneous rock
- Limestone
- Inner layer of the Earth
- Red light
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Select the false statement about weathering.
- Rocks of different chemical compositions weather at different rates.
- Hot and heavy rainfall increase the chances of chemical weathering.
- The presence of soil slow down the weathering of the underlying bedrock.
- If the rock is exposed at the surface for a longer time, the weathering will be more.
Select the false statement about weathering.
scienceGrade-4-
- Rocks of different chemical compositions weather at different rates.
- Hot and heavy rainfall increase the chances of chemical weathering.
- The presence of soil slow down the weathering of the underlying bedrock.
- If the rock is exposed at the surface for a longer time, the weathering will be more.
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What do you see in the following image?
- Magma
- Lava
- Inner layer of the Earth
- Red light
What do you see in the following image?
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- Magma
- Lava
- Inner layer of the Earth
- Red light
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___________ part of earth can be damaged by erosion and weathering.
- Crust
- Mantle
- Inner core
- Outer core
___________ part of earth can be damaged by erosion and weathering.
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- Crust
- Mantle
- Inner core
- Outer core
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Which of the following statement is correct?
- Crust is made up of tectonic plates.
- Crust is made up of crust and mantle plates.
- Crust is not made up of aluminum plates.
- Crust is made up of thin mantle plates.
Which of the following statement is correct?
scienceGrade-4-
- Crust is made up of tectonic plates.
- Crust is made up of crust and mantle plates.
- Crust is not made up of aluminum plates.
- Crust is made up of thin mantle plates.
