Rocks, Soil and Minerals Worksheet-5
(A) Magma (B) Lava (C) None of these
(A) Granite (B) Pumice (C) Obsidian
(A) Obsidian (B) Pumice (C) Granite
(A) Marble (B) Obsidian (C) Gypsum
(A) Topsoil → Subsoil → Bedrock
(B) Bedrock → Subsoil → Topsoil
(C) Subsoil → Topsoil → Bedrock
(A) Marble (B) Granite (C) Sandstone
(A) Conglomerate (B) Red sandstone (C) Shale
Multiple Choice Questions (with more than one option):
(A) Calcite (B) Copper (C) Gypsum
(D) Mica (E) Feldspar
a. Crust is the innermost layer of the earth.
b. Tungsten is used in electric bulbs.
c. The molten rock inside the earth’s core is known as lava.
d. All the rocks are soft.
e. Sandstone is soft sedimentary rock used in construction.
f. Sedimentary rocks contain fossils
g. Metamorphic rocks are formed due to the physical as well as chemical changes.
h. The roots of some big trees grow down into the bedrock.
i. Subsoil form a layer below topsoil and contains large rock.
Fill in the blanks:
(9) a. False; b.-True; c.-False; d.-False; e.-True; f.-True; g.-True; h.-False; i.-True
(10) 1-c; 2-a; 3-d; 4-b