Available Answers

1. 1.

   Match the following.

   a. Matter	i. Definite shape and volume.
   b. Solids	ii. No fixed shape and volume
   c. Liquids	iii. Temporary change
   d. Gas	iv. Take the shape of the container
   e. Physical change	v. Molecules

    

2. 2.

   Tick (√) the correct option.

   1. The molecules in solids are ___________.
      1. very tightly packed
      2. very loosely packed
      3. loosely packed
   2. Burning of a paper is a _______________.
      1. chemical change
      2. physical change
      3. reversible change
   3. In a salt solution, salt is the ____________.
      1. solute
      2. solvent
      3. solution
   4. A gas that dissolves in water is _______________.
      1. oxygen
      2. nitrogen
      3. both (i) and (ii)
   5. Change of water to ice occurs due to ______________.
      1. melting
      2. freezing
      3. evaporation
3. 3.

   Give an example of a physical change.
4. 4.

   Give an example of a chemical change.
5. 5.

   Give an example of a solute and solvent.
6. 6.

   What is evaporation?