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    Class 10 NEEBS

    Uploaded by

    Punkaz Sharma
    The document contains questions about science topics including weightlessness, the law of floatation, energy crisis, focusing, the modern periodic law, Haber's process, neutralization reactions, homologous series, heartbeat, Down's syndrome, yeast and planaria reproduction, Mendel's laws of dominance, the differences between g and G, hypermetropia and its causes, the difference between bases and alkalis, why ammonia gas is not collected over water, what cement is and why gypsum is added, what pericardial fluid is and its function, how sex is determined in humans, and why Mendel selected the pea plant for his experiments.

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    Class 10 NEEBS

    Uploaded by

    Punkaz Sharma
    10 views1 page
    The document contains questions about science topics including weightlessness, the law of floatation, energy crisis, focusing, the modern periodic law, Haber's process, neutralization reactions, homologous series, heartbeat, Down's syndrome, yeast and planaria reproduction, Mendel's laws of dominance, the differences between g and G, hypermetropia and its causes, the difference between bases and alkalis, why ammonia gas is not collected over water, what cement is and why gypsum is added, what pericardial fluid is and its function, how sex is determined in humans, and why Mendel selected the pea plant for his experiments.

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    The document contains questions about science topics including weightlessness, the law of floatation, energy crisis, focusing, the modern periodic law, Haber's process, neutralization reactions, homologous series, heartbeat, Down's syndrome, yeast and planaria reproduction, Mendel's laws of dominance, the differences between g and G, hypermetropia and its causes, the difference between bases and alkalis, why ammonia gas is not collected over water, what cement is and why gypsum is added, what pericardial fluid is and its function, how sex is determined in humans, and why Mendel selected the pea plant for his experiments.

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    © All Rights Reserved
    Download as DOCX, PDF, TXT or read online from Scribd
    Download as docx, pdf, or txt
    10 views1 page

    Class 10 NEEBS

    Uploaded by

    Punkaz Sharma
    The document contains questions about science topics including weightlessness, the law of floatation, energy crisis, focusing, the modern periodic law, Haber's process, neutralization reactions, homologous series, heartbeat, Down's syndrome, yeast and planaria reproduction, Mendel's laws of dominance, the differences between g and G, hypermetropia and its causes, the difference between bases and alkalis, why ammonia gas is not collected over water, what cement is and why gypsum is added, what pericardial fluid is and its function, how sex is determined in humans, and why Mendel selected the pea plant for his experiments.

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    Class 10 NEEBS Science

    Group A [12 X 1 = 12] Group C [4 X 3 = 12]

    1. Attempt all the questions: 11. Study the given figure and answer the following question:
    a) What is weightlessness? a) Calculate the pressure exerted on pistons A, C and D.
    b) State the law of floatation. b) Calculate the weight that can be balanced on piston A.
    c) Define energy crisis. c) Calculate the area of piston C.
    d) What is focusing? 12. Complete the following ray diagram and write
    e) Write the modern periodic law. the nature of image.
    f) What is Haber’s process?
    g) What is neutralization reaction?
    h) Define homologus series.
    i) Define heartbeat.
    j) What is Down’s Syndrome? The power of a lens is -5D, calculate its focal length.
    k) Name the method of reproduction for yeast and planaria. 13. Study the given gas preparation and answer.
    l) State the Mendel’s law of dominance? a) Which Gas is collected in the gas jar?
    b) Write the balanced chemical reaction for
    Group B [ 9 X 2 = 18]
    the process.
    2. Write two differences between g and G. c) Why is this gas collected by upward dispalcement
    3. Sun is the ultimate source of energy. Justify. of air?
    4. What is hypermetropia? Write its causes. 14. Differentiate between variation and mutation.
    5. Differentiate between bases and alkalis. Make a polygenic chart to verify the law of purity of gametes.
    6. What is the reason for not collecting ammonia gas over water?
    Group D [ 4 X 2 = 8]
    7. What is cement? Why is gypsum added during its final grinding?
    8. What is pericardial fluid? Write its function. 15. The mass of the Earth is 6 X 1024 kg and that of a satellite is 2 X 10 3 kg. If
    9. How is sex determined in human? Show it with help of chart. the distance between them is 15km, calculate the force between them.
    10. Why did Mendel select pea plant for his experiments? 16. Differentiate between self and cross pollination. How does the hydra
    reproduce? Explain with diagram.

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