IX Standard - 9th - Science - Quarterly Exam Question Paper - Samacheer Kalvi

 

                              

QUARTERLY EXAMINATION

        CLASS: IX                                                                     TOTAL MARKS: 100                                                                           

      SUBJECT: SCIENCE                                                         TIME: 2.30hrs

I. Choose the correct answer.                                              12x1=12 

1. Choose the correct one.

  a)mm< cm < m < km b)mm > cm > m > km   c) km < m < cm < mm  d) mm > m> cm> km

2. The area under velocity – time graph represents the

  a) velocity of the moving object.  b) displacement covered by the moving  object.

  c) speed of the moving object.    d) acceleration of the moving object.

3. The size of an air bubble rising up in water

  a) decreases      b) increases    c) remains same   d) may increase or decrease

4. __________ has the same properties throughout the sample

  a) Pure substance b) Mixture  c) Colloid d) Suspension

5. The number of protons, neutrons and electrons present respectively in are

  a) 80, 80, 35    b) 35, 55,80    c) 35, 35, 80     d) 35, 45, 35

6. Elements in the modern periodic table are arranged in groups and periods.

 a) 7, 18 b) 18, 7 c) 17, 8 d) 8, 17

 7. The animal without skull is  _____________.

        (a) Acrania           (b) Acephalia          (c) Apteria       (d) Acoelomate

  8. Water vascular system is found in

         (a) Hydra             (b) Earthworm        (c) Star fish     (d) Ascaris

  9. Aerenchyma is found in

         (a) epiphytes (b) hydrophytes (c) halophytes (d) xerophytes

 10. Nerve cell does not contains

          (a) axon (b) nerve endings (c) tendons (d) dendrites

  11. Transpiration takes place through _____________.

            (a) fruit               (b) seed      (c) flower     (d) stomata

 12. Which key should be pressed to run a slide show ?

            (a) F1        (b)Tab                  (c) F5           (d) F2

II. Answer the following questions (Any 10)                                     10x2=20 

13. Define least count of any device.

14. Fill in the blanks.

     i. Speed is a __________ quantity whereas velocity is a _________ quantity.

     ii. The slope of the distance – time graph at any point gives __________

     iii. Negative acceleration is called ________

     iv. Area under velocity – time graph shows____________

15. On what factors the pressure exerted by the liquid depends on?

16. Density of mercury is 13600 kg m^–3. Calculate the relative density.

17. State true or false. If false, correct the statement.

      i) In an atom, electrons revolve around the nucleus in fixed orbits.

      ii) Isotopes of an element have different atomic numbers.

18. State modern periodic law.

19.     Match the following.

Element	Settles down on standing
Compound	Impure substance
Colloid	Made up of molecules
Suspension	Pure substance
Mixture	Made up of atoms

 

 

                          

 

 

20. Match the following.

                PHYLUM                                              EXAMPLES

           (A) Coelenterata                                        (i) Snail

 (B) Platyhelminthes                                   (ii) Starfish

 (C) Echinodermata                                     (iii) Tapeworm

 (D) Mollusca                                               (iv) Hydra

21. What are intercalary meristems?

22. What is complex tissue? Name the various kinds of complex tissues.

23. What is nastic movement?

24. Name the plant part

          a) Which bends in the direction of gravity but away from the light.

          b) Which bends towards light but away from the force of gravity.

25.  What is nematocyst?

26. List the respiratory organs of amphibians.

27. What is LibreOffice Impress?

III. Answer briefly. 

28. Differentiate mass and weight.

29. Distinguish distance and displacement.

30.                                                                         

34. List five characteristic features of fishes.

35. Comment on the aquatic and terrestrial habits of amphibians.

36. What is skeletal connective tissue? How is it helpful in the functioning of our body?

37. Why should gametes be produced by meiosis during sexual reproduction?

38. Differentiate phototropism from photonasty.

39. Write the steps to view a Slide Show

VII. Answer in detail

2. Give an account on phylum Arthropoda

                     (OR)

3. List out the differences between mitosis and meiosis.

2. How will you differentiate the different types of transpiration?

                               (OR)

 1. Create a presentation on Festivals of Tamil Nadu. Save it with suitable name.