EXPERIMENTS WITH WATER

D.C. MODEL SR. SEC. SCHOOL
ASSIGNMENT  (CLASS 5)
ENVIRONMENTAL STUDIES
EXPERIMENT WITH WATER
Q1. CHOOSE THE CORRECT ANSWER TO FILL IN THE BLANKS: ----
Stirring, soap, cake, march, dead sea, sank, dissolve, floating, Dandi, sea water, British, salt, soap case, sink.
  1. The____ sinks in water while the ___ floats.
  2. On ____ sugar gets quickly dissolve in water.
  3. Ayesha saw that at the puri ____ to the bottom of the pan; as puffed up, it started ___ on the oil.
  4. When Ayesha put salt in the boiling water; eggs started ____.
  5. Oil does not _____ in water.
  6. Gandhi undertook a____ from Ahmedabad to ____ in Gujarat.
  7. The ____ can be used to a make salt.
  8. The ____ make a law that people could not make ____ even for use at home.
  9. A Steel plate can ____ in water.
  10. ____ has the saltiest water of all the seas.
Q2. WRITE ‘TRUE’ FOR THE CORRECT STATEMENT AND ‘FALSE’ FOR THE WRONG STATEMENT: ---
  1. Oil can easily be mixed with water.       [  ]
  2. A wooden boat will sink in water.          [  ]
  3. Salt dissolves in water very quickly.       [  ]
  4. Lemon can float in the salty water.        [  ]
  5. Salt can be made from sea water.          [  ]
Q3. ANSWER THE FOLLOWING VERY BRIEFLY: -----
  1. Which is the saltiest sea of the world?
ANS:-_____________________________________________________
  1. Can you see salt dissolved in water?
ANS:-_____________________________________________________
  1. Does oil dissolve in water? Why?
ANS:-_____________________________________________________
  1. Which two factors help sugar dissolve in water?
ANS:-_____________________________________________________
  1. How would you separate chalk powder from water?
ANS:-_____________________________________________________

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