Sixth Standard Science Quiz For Students

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| By Amita Padalkar
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Amita Padalkar
Community Contributor
Quizzes Created: 2 | Total Attempts: 1,620
| Attempts: 98
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  • 1/10 Questions

    The oxygen is useful for 

    • Production f Ammonia
    • Used in fire extinguishers
    • Use in electric bulbs
    • Respiratiion
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About This Quiz

Hi Dear Friends,
I am Shardul Rahul Padalkar
St Vincent's High School
Pune
Std : 6th
I have prepared the quiz based on 6 th Standard Science Book .
Lets solve the quiz and get your Certificate

Sixth Standard Science Quiz For Students - Quiz

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  • 2. 

    The amount of air greatest near the surface 

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The amount of air is greatest near the surface because the Earth's atmosphere is denser closer to the ground. This is due to the force of gravity, which pulls the air molecules towards the surface. As a result, there are more air molecules in a given volume of space near the surface compared to higher altitudes.

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  • 3. 

    The layer of ozone absorbs 

    • Alpha rays

    • UV rays

    • Gyama rays

    • Beta rays

    Correct Answer
    A. UV rays
    Explanation
    The layer of ozone absorbs UV rays. Ozone is a molecule made up of three oxygen atoms, and it is found in the Earth's stratosphere. It acts as a protective layer by absorbing most of the Sun's harmful ultraviolet (UV) radiation. UV rays can cause various health issues, including skin cancer, cataracts, and weakened immune system. Therefore, the presence of ozone in the atmosphere is crucial in preventing excessive UV radiation from reaching the Earth's surface.

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  • 4. 

    The proportion of oxygen in the air is ?

    • 78%

    • 0.9 %

    • 21 %

    • 0.03%

    Correct Answer
    A. 21 %
    Explanation
    The correct answer is 21%. This is because oxygen makes up approximately 21% of the Earth's atmosphere. The majority of the air we breathe is composed of nitrogen (about 78%), with trace amounts of other gases such as carbon dioxide and argon.

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  • 5. 

    Air , water and land are called ----------------- Resources .

    Correct Answer
    Natural ,
    Explanation
    Air, water, and land are referred to as natural resources because they are elements of the Earth's environment that are not created by humans. These resources are essential for the survival and well-being of all living organisms. Air provides oxygen for breathing, water is necessary for hydration and various processes, and land is used for agriculture, housing, and other human activities. These resources are finite and need to be conserved and managed responsibly to ensure their availability for future generations.

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  • 6. 

    The land and soil are same things?

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because land and soil are not the same things. Land refers to the surface of the Earth, including areas of water, while soil specifically refers to the upper layer of the Earth's crust that supports plant growth. While soil is a component of land, they are not interchangeable terms.

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  • 7. 

    It takes about 1000 years to form thick layer of soil

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The statement is true because it generally takes a significant amount of time for soil to develop into a thick layer. Soil formation is a slow process that involves the weathering of rocks, the decomposition of organic matter, and the accumulation of minerals and nutrients. These processes occur over long periods of time, often taking hundreds or even thousands of years, to create a substantial layer of soil.

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  • 8. 

    The water in the lake is called groundwater

    • True

    • False

    Correct Answer
    A. False
    Explanation
    The statement is false because the water in the lake is not called groundwater. Groundwater refers to water that is stored underground in the spaces between rocks and soil. Lakes, on the other hand, are bodies of water that are formed on the surface due to various factors such as rainfall, rivers, or glaciers. While groundwater can contribute to the water in a lake through seepage or springs, it is not accurate to say that the water in the lake itself is called groundwater.

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  • 9. 

    The proportion of nitrogen in the air is

    • 78 %

    • 21 %

    • 0.79 %

    • 16 %

    Correct Answer
    A. 78 %
    Explanation
    The correct answer is 78%. This is because nitrogen makes up approximately 78% of the Earth's atmosphere. It is the most abundant gas in the atmosphere and is essential for many biological processes.

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  • 10. 

    Gases are not found in

    • Atmosphere

    • Hydrosphere

    • Exosphere

    • Lithosphere

    Correct Answer
    A. Exosphere
    Explanation
    The exosphere is the outermost layer of the Earth's atmosphere, extending from about 500 to 1,000 kilometers above the surface. It is a region where the density of gases is extremely low and the molecules are very far apart. As a result, the exosphere does not contain a significant amount of gases compared to the other layers of the atmosphere. Therefore, it can be said that gases are not found in the exosphere.

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  • Current Version
  • Mar 20, 2023
    Quiz Edited by
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  • May 01, 2020
    Quiz Created by
    Amita Padalkar
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