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  1. Madhuri kept some water in a refrigerator and after some time the water changed into ice. What is this process called?
    • ✘ Condensation
    • ✔ Freezing
    • ✘ Boiling
    • ✘ Evaporation
  2. Which property is true for solids?
    • ✘ It has no definite shape
    • ✔ It has definite shape
    • ✘ It has no definite volume
    • ✘ It flows down wards and upwards
  3. Identify the substance that is insoluble in water.
    • ✘ Sugar
    • ✘ Salt
    • ✘ Lemon juice
    • ✔ Oil
  4. What helps in letting the smoke out from the kitchen?
    • ✘ Drain pipe
    • ✔ Chimney
    • ✘ Water pipe
    • ✘ Bolts
  5. Which from of water is water vapour?
    • ✔ Gas
    • ✘ Liquid
    • ✘ Solid
    • ✘ All of these
  6. Anurag took a glass of cold water from the refrigerator and placed it on a table. After few minutes he observed water drops on the outer surface of the glass. How did they form?
    • ✘ Glass produced water droplets
    • ✘ The water in the glass moved through the glass
    • ✔ Water vapour present in the air is condensed
    • ✘ Water came out from the gaps present in the glass
  7. We can measure the room temperature by using ___________________.
    • ✔ Thermometer
    • ✘ Barometer
    • ✘ Speedometer
    • ✘ None of these
  8. When ice cream is left out of a freezer, the ice cream changes its form from a _________.
    • ✘ solid to a gas
    • ✘ gas to a liquid
    • ✔ solid to a liquid
    • ✘ Liquid to a gas
  9. A student took some unknown matter into a beaker. The matter took the shape of the Beaker. Later he transferred the matter into a measuring cylinder. The matter took the shape of the cylinder but its volume remained the same. What is the state of that matter?
    • ✘ Solid
    • ✘ Gas
    • ✔ Liquid
    • ✘ All of these
  10. The burning of fire needs
    • ✔ air
    • ✘ water
    • ✘ rain
    • ✘ All of these
  11. To obtain water from water vapour, we should _______________ the water vapour.
    • ✘ heat
    • ✘ evaporate
    • ✔ condense
    • ✘ do nothing
  12. When Saira blew air into a balloon it expanded. This shows that
    • ✘ air has no mass
    • ✔ air occupies space
    • ✘ air has no weight
    • ✘ air is visible
  13. Which of the following is wrong?
    • ✘ A
    • ✔ B
    • ✘ C
    • ✘ D
  14. Which instrument is used to measure the temperature of hot water?
    • ✘ Stopwatch
    • ✘ Ruler
    • ✔ Thermometer
    • ✘ Balance
  15. Which states of matter has the strongest force of attraction between its molecules?
    • ✔ Solid
    • ✘ Liquid
    • ✘ Gas
    • ✘ All of these
  16. Which of the following are in solid state?
    • ✘ Only P and R
    • ✘ Only P and S
    • ✔ Only Q and R
    • ✘ Only R and S
  17. Look at the venn diagram below.
    • ✔ Water
    • ✘ Salt
    • ✘ Sugar
    • ✘ Kerosene
  18. Which process is represented by ‘X’?
    • ✔ Boiling
    • ✘ Freezing
    • ✘ Melting
    • ✘ Condensation
  19. Snow is a form of water in _________________state.
    • ✘ liquid
    • ✘ gaseous
    • ✔ solid
    • ✘ vapour
  20. In how many states can water exist?
    • ✘ 1
    • ✘ 2
    • ✔ 3
    • ✘ 4
  21. Which of these is a SOLID and has a STRONG SMELL?
    • ✘ Salt
    • ✘ Petrol
    • ✔ Camphor
    • ✘ Refined oil
  22. Which of the following is a source of heat and light to all living organisms?
    • ✘ Wood
    • ✘ Coal
    • ✔ Sun
    • ✘ Moon
  23. Which of the following would BEST describe refined oil?
    • ✘ It is a Solid and dissolves in water
    • ✘ It is a liquid and dissolves in water
    • ✘ It is a solid and does NOT dissolve in water
    • ✔ It is a liquid and does NOT dissolve in water
  24. What can be ground into a paste using a little water?
    • ✔ A piece of newspaper
    • ✘ A piece of plastic
    • ✘ A piece of silk cloth
    • ✘ A piece of a cycle tube
  25. What do 1, 2, 3 and 4 in the processes shown below represent?
    • ✘ 1 – heat, 2 – cool, 3 – cool, 4 – heat
    • ✔ 1 – heat, 2 – cool, 3 – heat, 4 – heat
    • ✘ 1 – cool, 2 – heat, 3 – heat, 4 – heat
    • ✘ 1 – cool, 2 – cool, 3 – heat, 4 – cool
  26. Name the process ‘X’ in the given figure.
    • ✘ Boiling
    • ✘ Freezing
    • ✘ Melting
    • ✔ Condensation
  27. Which processes produce energy?
    • ✘ Digestion
    • ✔ Respiration
    • ✘ Melting
    • ✘ Evaporation
  28. Why does water vapour rise upwards?
    • ✘ It is cooler than the surrounding air.
    • ✘ It is heavier than the surrounding air.
    • ✔ It is lighter than the surrounding air.
    • ✘ It is attracted by the clouds in the sky.
  29. When water is cooled to _________________ degree celsius, it freezes and changes to ice.
    • ✘ 100
    • ✘ 50
    • ✘ 25
    • ✔ 0
  30. Which of these has been put under the INCORRECT heading?
    • ✘ Eraser
    • ✘ Orange juice
    • ✘ Steam
    • ✔ Ice cube
  31. Which of these is the solid form of water?
    • ✘ Steam
    • ✔ Ice
    • ✘ Water vapour
    • ✘ All of these
  32. Which of the following is/are in the gaseous state of matter?
    • ✘ Water vapour
    • ✘ Ice cream
    • ✔ Steam
    • ✘ Both (A) and (C)
  33. The clouds are formed by
    • ✔ condensation
    • ✘ evaporation
    • ✘ melting
    • ✘ boiling
  34. What is the best way to dispose waste water from our kitchen?
    • ✘ Using it as drinking water
    • ✘ Using it as bathing water
    • ✔ Using it for watering plants
    • ✘ Letting it to stagnate on the road.
  35. Bat is a living thing as it
    • ✘ has weight
    • ✘ is matter
    • ✘ can be seen
    • ✔ needs to eat