Chapter-4 ➤ Sorting Materials Into Groups

1. A thing can be made of different _______.

 
 
 
 

2. Which one will show a metallic lustre?

 
 
 
 

3. Purpose of sorting material into groups is

 
 
 
 

4. State whether the statement given below are True or False:
The materials which do not allow light to pass through them are called opaque.

 
 

5. Sand is _______ in water.

 
 
 
 

6. State whether the statement given below are True or False:
The materials which conduct heat very slowly are called non-conductor of heat.

 
 

7. __________ substances are those through which we can easily see.

 
 
 
 

8. Choose the opaque object from the following:

 
 
 
 

9. Iron is a _______ material.

 
 
 
 

10. Blue Vitriol (Neela though) is _____ in water.

 
 
 
 

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