Available Answers

1. 1.

   Choose the correct answer :

   1. If the molecules are very close to each other in a substance, then it is a −
      1. solid 
      2. liquid
      3. gas 
      4. none of these
   2. Anything that occupies space and has mass is called −
      1. solid 
      2. liquid 
      3. gas 
      4. matter 
   3. Gases do not have −
      1. fixed shape
      2. fixed volume
      3. both fixed shape and volume
      4. fixed matter
   4. Substances that are hard and do not flow are called −
      1. matter
      2. solids
      3. liquids
      4. gases
   5. Substances that have the same shape as that of the container are −
      1. solids
      2. liquids
      3. gases 
      4. None of these
2. 2.

   Write True (T) or False (F) against the following statements. If false, correct the statement :

   1. Water has a definite shape.
   2. Molecules in a solid are tightly packed.
   3. Matter has mass but no volume.
   4. A given mass of gas can be packed into a small cylinder.
   5. Liquids take the shape of the container in which they are kept.
3. 3.

   Match Column A with Column B:

   Column  A	Column  B
   1. Ice	a. Molecules
   2. Matter	b. Hard
   3. Solid	c. No definite
   4. Milk	d. Solid
   5. Gases	e. Flow

    

4. 4.

   What is matter?
5. 5.

   How is the shape of a solid different from a liquid?
6. 6.

   With the help of simple diagrams, show the arrangement of the molecules in a solid, liquid and gas.