RISING NEPAL SECONDARY BOARDING SCHOOL

Class: - 6 SECOND TERMINAL EXAMINATION 2076 F.M:50

Time:- 2hrs. Sub:- Science P.M:16

Candidates are required to give their answers in their own words as far as practicable. The figures in the margin indicate full marks.

All the questions are compulsory.

  1. Fill in the blanks. 0.5x6= 3
  2. Guitar is a ……………of sound.
  3. Sound cannot travel through……….
  4. The shrillness of sound is called ……….
  5. Sound travels ……….in solid than liquid and gas.
  6. Plant cell stores water and minerals in ………
  7. ……. are found in plant cell but not in animal cell.
  8. State whether the following statements are true or false. 0.5x6= 3
  9. Glass rod is a conductor.
  10. Bulb glows in a closed circuit.
  11. Atoms are arranged together to make matter.
  12. Kerosene dissolves in water.
  13. All cells have same size and shape.
  14. A plant cell has chloroplast.
  15. Match the following. 1x5= 5

a. sediment i. clear solution obtained after filtration

b. sieve ii. insoluble substances settle at bottom

c. sand iiii. mixture of water and alcohol

d. filtrate iv. homogeneous mixture

e. residue v. flat surface having tiny pore

vi. filter paper

  1. Tick (√ ) for the best answer. 3.5
  2. A sound is :

i. a form of energy ii. force

iii. neither force nor energy iv. power

  1. Which of the following statements is correct?

i. all sounds are audible to our ear

ii. sound produced from vocal cord can be heard.

iii. sound produced by earthquake can be heard.

iv. sound can travel through vacuum.

  1. Which of the following is not the source of sound?

i. guitar ii. drum iii. speaker iv. book

  1. Which of the following is the air?

i. element ii. mixture iii. compound iv. molecule

  1. What is the process for changing liquid into gas called?

i. evaporation ii. sublimation iii. freezing iv. condensation

  1. Which of the following is the source of electricity?

i. electric bulb ii. switch iii. cell iv. electric wire

  1. Which of the following is the good conductor of electricity?

i. copper wire ii. silicon iii. glass rod iv. pure water

  1. Give differences between: 2.5x3= 7.5
  2. element and compound.
  3. evaporation and sublimation
  4. compound and mixture
  5. Give reason: 2.5x2= 5
  6. Camphor is called sublime substance.
  7. Ice changes into liquid while heating.
  8. Identify the change of state of matter: (sublimation, melting, evaporation, freezing, condensation) 1x5= 5
  9. Ice changes into water.
  10. Camphor changes into vapour.
  11. Water changes into steam.
  12. Water solidifies into ice.
  13. Steam changes into water.
  14. Answer the following questions. 2x7= 14
  15. What is the pitch of a sound? Do all types of sound have same pitch?
  16. Write any two uses of magnet.
  17. Write any two sources of electricity.
  18. What is matter? Write any three properties of matter.
  19. Which cell contains plastids? What are the different types of plastics?
  20. What do mitochondria do? Describe it.
  21. What is eclipse? How does it occur?
  22. Draw a well labelled diagram of compound microscope and label it. 1x4= 4

The End