Solids, Liquids & Gases Worksheet-7
(A) Sugar gets dissolved and volume increases
(B) Sugar gets dissolved and volume remains constant
(C) Sugar remains undissolved and the volume increases
(A) Perfume had a property of spreading from one place to other
(B) Sheetal too used the same perfume
(C) None of these
(A) Petrol (B) Kerosene (C) Water
(A) Opening of the tap is small
(B) Air has occupied some space together with water
(C) Salts present in water has occupied some space
(A) Water in milk
(B) Carbon dioxide in water
(C) Kerosene in water
(A) To improve the taste of water
(B) To improve the colour of water
(C) To precipitate (settle) the salts present in the water
(A) Atoms (B) Ions (C) Fragments
(A) The heat of water contracts the lid and opens it
(B) The heat of water expands the lid and opens it
(C) There is no effect of heat on the lid
(A) Paper (B) Wood (C) Candle
a. Matters are made up of only large particles.
b. Ice is a liquid form of water.
c. Molecules of the substance moves fast on cooling the substance.
d. Sand easily gets dissolved in water.
e. Liquids have definite shape.
f. Water is present in the air in the form of gas.
g. Evaporation occurs only on the surface of liquids.
h. The space between the molecules is least in solid state.
i. Molecules are made up of tiny particles called ions.
j. The process of transformation (change) of gas into liquid is known as melting.
k. Metals are generally solids.
Fill in the blanks:
(10) a. False; b. False; c. False; d. False; e. False; f. True; g. True; h. True; i. False; j. False; k. True
(11) condensation/ condensations