Term 1 Two Marks Model Questions

7th Standard EM

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Science

Time : 01:00:00 Hrs
Total Marks : 50
    4 x 1 = 4
  1. Molecule Chlorine Gas Nitrogen Gas
    Molecule
    Diagram
    ?
    Molecule Model
    (Ball and Stick)
    ?
  2. Complete the table by writing the symbols of the following elements

    Element Symbol
    Aluminium Al
    Nickel  
    Bromine  
    Helium  
    Magnesium  
  3. Underground stem __ (1)__ Ginger
    __ (2)__ Runner __ (3)__
    Leaf modification __ (4)__ Acacia
    Root modification sucking Roots __ (5)__
  4. Tuberculosis ________
    _______ Virus
  5. 6 x 2 = 12
  6. Area: m2 :: Volume _______

  7. velocity : metre/ second : : acceleration : ________

  8. Mercury: liquid at room temperature:: Oxygen__________

    ()

          

  9. K: Potassium, C: __________.

  10. Tuberculosis : air :: Cholera : ___________

  11. Tuberculosis: Lungs
    Rabies: __________

  12. 2 x 2 = 4
  13. Observe the picture and draw the labels.
    ​​​​

  14. Identify the four plants shown in the following Name the different modification in each of them.

      Name Modification
    1 Garlic  
    2 Turnip  
    3 Rose plant  
    4 Maize  
  15. 15 x 2 = 30
  16. Name some of the derived quantities.

  17. What is the density of gold?

  18. What are the types of physical quantity?

  19. “She moves at a constant speed in a constant direction”. Rephrase the same sentence in fewer words using concepts related to motion.

  20. Define the following terms with an example of each:
    a. Element
    b. Compound
    c. Metal
    d. Non-metal
    e. Metalloid

  21. Classify the following as elements and compounds
    Water, common salt, sugar, carbon dioxide, iodine and lithium

  22. What is a molecule?

  23. Define an atom.

  24. What is atomic number?

  25. Write two types of reproduction in plants.

  26. Define – pollination.

  27. Describe a stamen.

  28. What is hygiene?

  29. How to keep your hair clean and healthy?

  30. What is Raster Graphics?

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