Science Quiz Questions And Answers For Class 10

Reviewed by Daniel P
Daniel P, MSEd, Science |
Science Education
Review Board Member
With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.
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Science Quiz Questions And Answers For Class 10 - Quiz

Are you excited to try these Science quiz questions and answers for class 10? As a tenth grader, you are expected to answer the following questions correctly and revise the ones you fail at. Do you believe that you understood most of the things taught in the science class?

Delve into the intricacies of science with our thought-provoking quiz designed for Class 10. This quiz encapsulates a spectrum of scientific domains, from physics and chemistry to biology and environmental studies. Crafted to engage and enrich, each question is poised to test and broaden the understanding of budding scientists.

Navigate through Read morethe complexities of scientific principles, explore the wonders of the natural world, and unravel the mysteries of the cosmos. This quiz serves as a dynamic tool for students to assess their scientific prowess, with answers provided for comprehensive learning.

Spark intellectual curiosity, encourage critical thinking, and let this quiz be a beacon for scientific exploration in the vibrant minds of Class 10 students.


Science for class 10 Questions and Answers

  • 1. 

    Which gas is needed for photosynthesis?

    • A.

      Oxygen

    • B.

      Carbon dioxide

    • C.

      Hydrogen

    • D.

      Carbon monoxide

    Correct Answer
    B. Carbon dioxide
    Explanation
    Carbon dioxide is needed for photosynthesis because it is fixed by plants to produce glucose and oxygen. During photosynthesis, plants use sunlight, water, and carbon dioxide to create glucose, which is their source of energy. Oxygen is also produced as a byproduct of this process. Without carbon dioxide, plants would not be able to carry out photosynthesis and produce the necessary energy for the growth and survival of the vast majority of the Earth’s organisms, which require oxygen and glucose.

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  • 2. 

    What type of energy is required for photosynthesis to happen?

    • A.

      Light

    • B.

      Heat

    • C.

      Electrical

    • D.

      Sand

    Correct Answer
    A. Light
    Explanation
    Photosynthesis is the process where plants convert light energy into chemical energy in the form of glucose. This energy is essential for the growth and development of plants. The correct answer is light, as it is the primary source of energy that drives the photosynthetic process. Heat and electrical energy do not play a direct role in photosynthesis, and sand is not a form of energy.

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  • 3. 

    The waste by-product of photosynthesis is:

    • A.

      Oxygen

    • B.

      Carbon dioxide

    • C.

      Glucose

    • D.

      None of the above

    Correct Answer
    A. Oxygen
    Explanation
    During photosynthesis, plants convert carbon dioxide and water into glucose and oxygen. Oxygen is released as a waste by-product and is released into the atmosphere.

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  • 4. 

    Tomatoes in a greenhouse grow faster if the carbon dioxide concentration is increased. This shows that:

    • A.

      The temperature must have been a limiting factor.

    • B.

      Carbon dioxide concentration must have been a limiting factor.

    • C.

      Light intensity must have been a limiting factor.

    • D.

      None of the above

    Correct Answer
    B. Carbon dioxide concentration must have been a limiting factor.
    Explanation
    Increasing the carbon dioxide concentration in a greenhouse promotes faster growth of tomatoes. This suggests that the availability of carbon dioxide was a limiting factor in the growth of tomatoes. The other options, temperature and light intensity, are not mentioned in the given information and therefore cannot be inferred as limiting factors.

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  • 5. 

    Photosynthesis can be summarized by which word equation:

    • A.

      Oxygen + glucose → carbon dioxide + water

    • B.

      Carbon dioxide + oxygen → glucose + water

    • C.

      Carbon dioxide + water → glucose + oxygen

    • D.

      None of the above

    Correct Answer
    C. Carbon dioxide + water → glucose + oxygen
    Explanation
    The correct answer is "carbon dioxide + water → glucose + oxygen." This equation represents the process of photosynthesis, where carbon dioxide and water are converted into glucose (a form of sugar) and oxygen. During photosynthesis, plants use sunlight as an energy source to convert carbon dioxide and water into glucose, which they can use for energy, and oxygen, which is released into the atmosphere.

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  • 6. 

      Why do plants need nitrate ions?

    • A.

      To make proteins

    • B.

      To make fatty acids

    • C.

      To make starch for storage

    • D.

      To make chlorophyll

    Correct Answer
    A. To make proteins
    Explanation
    Plants need nitrate ions to make proteins. Nitrate ions are a vital source of nitrogen, which is an essential element for amino acids, the building blocks of proteins. Proteins are crucial for various plant functions, including growth and defense against pathogens. Nitrate ions are absorbed by plant roots and transported to different parts of the plant, where they are used to form amino acids. These amino acids are then assembled into various types of proteins, which play a crucial role in the structure and function of plant cells and tissues.

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  • 7. 

    In plants, photosynthesis mainly occurs in the leaves.

    • A.

      True

    • B.

      False

    Correct Answer
    A. True
    Explanation
    Photosynthesis is the process by which plants convert sunlight, water, and carbon dioxide into glucose and oxygen. This process takes place in specialized structures called chloroplasts, which are predominantly found in the leaves of plants. The leaves have a large surface area and are exposed to sunlight, making them the primary site for photosynthesis. Therefore, the statement that photosynthesis mainly occurs in the leaves is correct.

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  • 8. 

    Photosynthesis takes place in the root.

    • A.

      True

    • B.

      False

    Correct Answer
    B. False
    Explanation
    Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen. This process occurs in the chloroplasts, which are typically found in the leaves of plants. The root, on the other hand, is responsible for absorbing water and nutrients from the soil and is usually not exposed to sunlight. Therefore, photosynthesis does not take place in the root.

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  • 9. 

    The substance that makes a leaf look green is called:

    • A.

      Leaf

    • B.

      Palisade

    • C.

      Chlorophyll

    • D.

      Chloroplasts

    Correct Answer
    C. Chlorophyll
    Explanation
    Chlorophyll is the correct answer because it is the green pigment found in leaf cells that is responsible for absorbing light energy for photosynthesis. It is located in the chloroplasts, which are the organelles where photosynthesis takes place. Chlorophyll is essential for plants to convert sunlight into chemical energy, allowing them to produce glucose and oxygen. Without chlorophyll, plants would not be able to carry out photosynthesis, where light is required to catalyze the reaction.

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  • 10. 

    Photosynthesis takes place in the:

    • A.

      Chloroplasts

    • B.

      Roots

    • C.

      Palisade

    • D.

      None

    Correct Answer
    A. Chloroplasts
    Explanation
    Chloroplasts are the organelles found in plant cells where photosynthesis takes place. Inside the chloroplasts, chlorophyll captures solar and light energy, which is then used to convert carbon dioxide and water into glucose and oxygen through a series of chemical reactions. This process is known as photosynthesis and is essential for the plant's survival as it provides the energy needed for growth and development. Therefore, the correct location for photosynthesis is within the chloroplasts.

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  • 11. 

    The green pigment that captures the sun's energy in photosynthesis is called ______________.

    • A.

      Cell wall

    • B.

      Chloroplasts

    • C.

      Palisade

    • D.

      Chlorophyll

    Correct Answer
    D. Chlorophyll
    Explanation
    Chlorophyll is the green pigment responsible for capturing solar energy in photosynthesis. It is found in the chloroplasts of plant cells and is essential for the process of converting sunlight into chemical energy. The chlorophyll molecules absorb light energy and use it to power the synthesis of glucose, which is the primary source of energy for plants. Without chlorophyll, photosynthesis cannot occur, and plants would not be able to produce their own food.

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Daniel P |MSEd, Science |
Science Education
With 11 years of urban teaching, Daniel excels as a STEM club teacher, demonstrating expertise in curriculum design, differentiated instruction for IEPs, and adept use of Google Classroom. His commitment to education shines through in his impactful contributions to STEM learning. Daniel holds a MSEd in Science Education from The City College of New York and a BA in History from Binghamton University. With certifications in Special Education and Biology, he is dedicated to curriculum development and enhancing educational experiences for students.

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  • Feb 26, 2024
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  • May 04, 2012
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    Abdul Jalil
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