Rocks, Soil and Minerals Worksheet-1

Rocks, Soil and Minerals Worksheet-1

Multiple-Choice Question:

1. Rocks are made up of:

(A) Sand                      (B) Soil                         (C) Minerals

2. I am a sedimentary rock. I am black in colour. I am rich in carbon. I am mainly used as a fuel. Who am I?

(A) Conglomerate     (B) Sandstone             (C) Coal

3. Which of the following igneous rock is formed by slow cooling of lava?

(A) Granite                 (B) Pumice                 (C) Obsidian

4. Which of the following is a sedimentary rock?

(A) Granite                 (B) Limestone            (C) Marble

5. Which of the following mineral/s is/are present in limestone?

(A) Quartz                 (B) Iron                        (C) Calcium

6. The loss of the topsoil by wind or water will cause:

(A) Soil erosion          (B) Flood                     (C) Weathering

7. The monument in the given picture is situated in Kolkata, West Bengal. It is made up of which of the following type of rocks?

(A) White sandstone

(B) White Makrana marbles

(C) Polished granite

Multiple Choice Questions (with more than one option):

8. Mark the igneous rock/s.

(A) Granite                 (B) Sandstone             (C) Pumice

(D) Obsidian               (E) Conglomerate

9. Which of the following rock/s is/are used to make floors?

(A) Marble                  (B) Obsidian               (C) Slate

(D) Pumice                 (E) Granite

10. True/False:

a.      All the minerals are made up of rocks.

b.      Silica is used to make glasses.

c.      Igneous rocks are formed by cooling and solidification of magma or lava.

d.      Obsidian is used as a building material.

e.      Rock salt is an igneous rock.

f.       Diamond is the hardest mineral.

g.      The energy produced from uranium is known as uranium energy.

h.      Plants obtain all the necessary nutrients from bedrock.

i.       Topsoil is infertile.

Miscellaneous Questions:

11. Mark the odd one out on the basis of types of rock.

i) Granite           ii) Gneiss            iii) Pumice

Fill in the blanks:

12. Rocks formed as a result of cooling and solidification of lava are known as _____ rocks.  
13. ____ is the uppermost layer of the soil that contains humus.  

Answer Key:

(1)     (C)

(2)    (C)

(3)    (A)

(4)    (B)

(5)    (C)

(6)    (A)

(7)    (B)

(8)    (A,C,D)

(9)    (A,C,E)

(10)  a.-False; b.-True; c.-True; d.-False; e.-False; f.-True; g.-False; h.-False; i.-False

(11)   Gneiss

(12)  Igneous

(13)  Topsoil/ Top soil