Page 51 - SST Class 04

5. Thermal electricity is produced from ____________ .
(a) iron (b) coal (c) thorium
B. Match products with minerals :

iron

bauxite

et ol
mineral oil P r

mica

limestone

C. Answer the questions briefly :
1. What is mining?
2. Why is refining necessary for minerals?

3. What can be done to a metal?
4. What is manganese used for?
5. What is coal used for?
6. How is salt produced?

7. How important is conservation of minerals?

Activity

v Give any two suggestions for conservation of minerals :
1. ___________________________________________________________________________________
2. ___________________________________________________________________________________

Minerals and You

v With your father, visit the shop/stall of a scrap-dealer. Keenly observe the things he has
bought, like old newspaper. Now, write any four things you saw with him :
________________ ________________ ________________ ________________

India : Minerals 51