Term 1 Model Questions

8th Standard EM

    Reg.No. :
  •  
  •  
  •  
  •  
  •  
  •  

Science

Time : 02:00:00 Hrs
Total Marks : 60
    6 x 1 = 6
  1. SI unit stands for

    (a)

    International system of units

    (b)

    Integrated System of units

    (c)

    International symbol of units

    (d)

    Integrated symbol of units

  2. The unit for surface tension is _________

    (a)

    Nm

    (b)

    N-1m

    (c)

    N-1m-1

    (d)

    Nm-1

  3. The liquid metal used in thermometers is

    (a)

    Copper

    (b)

    Mercury

    (c)

    Silver

    (d)

    Gold

  4. Burning of paper is a______ change.

    (a)

    Physical

    (b)

    chemical

    (c)

    physical & chemical

    (d)

    neutral

  5. Limestone contains ______ mainly.

    (a)

    Calcium chloride

    (b)

    calcium carbonate

    (c)

    calcium nitrate

    (d)

    calcium sulphate

  6. Based on shape, the bacteria are classified into _______ types.

    (a)

    2

    (b)

    3

    (c)

    4

    (d)

    5

  7. 5 x 1 = 5
  8. _______ is used to measure electric current.

    ()

    Ammeter

  9. A simple barometer was first constructed by _____.

    ()

    Torricelli

  10. __________ is the best reflector of light

    ()

    Silver

  11. ______ is the basic material to manufacture urea.

    ()

    Ammonia

  12. The book “Genera Plantarum” was written by _________

    ()

    Bentham and Hooker

  13. 5 x 1 = 5
  14. One coulomb of charge fl owing per minute is called ‘ampere’.

    (a) True
    (b) False
  15. Rolling friction is slightly greater than the sliding friction.

    (a) True
    (b) False
  16. Citrus canker is transmitted by insects.

    (a) True
    (b) False
  17. All bryophytes are hydrophytes.

    (a) True
    (b) False
  18. The dominant phase of the pteridophytes is diploid(2n).

    (a) True
    (b) False
  19. 5 x 1 = 5
  20. Lubricants

  21. (1)

    Vaccine

  22. Snell’s law

  23. (2)

    sin i /sin r = μ

  24. Compound

  25. (3)

    RAM

  26. Edward Jenner

  27. (4)

    reduce friction

  28. Hardware

  29. (5)

    building block of matter

    3 x 2 = 6
  30. Assertion: The SI system of units is the suitable system for measurements.
    Reason: The SI unit of temperature is Kelvin.
    a. If both assertion and reason are true and reason is the correct explanation of the assertion.
    b. If both assertion and reason are true but reason is not the correct explanation of the assertion.
    c. Assertion is true, but reason is false.
    d. Assertion is false, but reason is true.

  31. Assertion (A): Clinical thermometers are graduated in fahrenheit scale.
    Reason (R): Weather reports are given in celsius scael
    a) If both assertion and reason are true but reason is the correct explanation of the assertion.
    b) If both assertion and reason are true but reason is not the correct explanation of the assertion.
    c) Assertion is true but reason is false.
    d) Assertion is false, but reason is true.

  32. Assertion(A): Bryophytes are called Amphibians of the plant kingdom.
    Reason(R): Bryophytes are land plants but they need water for the completion of their life cycle.
    a) A correct R correct
    b) A incorrect R correct
    c) A and R correct R explain A
    d) A and R incorrect

  33. 2 x 2 = 4
  34. Mercury: liquid metal_________liquid non-metal

  35. Iron in water and air: Brown colour :: Iron in copper sulphate solution:_________

  36. 5 x 2 = 10
  37. Convert 60° into radian.

  38. Focal length of a spherical mirror is 7 cm. What is its radius of curvature?

  39. What is pollution?

  40. Who discovered penicillin?

  41. Differentiate between Osmoconformers and Osmoregulators?

  42. 3 x 3 = 9
  43. Define- Temperature.

  44. Write down three ways of minimising friction.

  45. State the laws of reflection.

  46. 2 x 5 = 10
  47. Explain the three types of pollution.

  48. Differentiate between inhalation and exhalation.

*****************************************

Reviews & Comments about 8th Standard Science Term 1 Model Question Paper 2

Write your Comment