Online Test — Rocks & Soil
10 Questions • 12 min • Chapter MCQ
12:00
Question 1 of 10
medium
The middle layer with bigger bits of rock is the…
Topsoil
Subsoil
Sky
Cloud
Explanation: Subsoil lies below the topsoil and has more rock.
Question 2 of 10
hard
Why does cracking, freezing and heating help make soil?
They grow the rock
They paint the rock
They break rock into smaller and smaller bits
They cool the Sun
Explanation: These actions slowly break rock into soil-sized bits.
Question 3 of 10
easy
Soil is made when big rocks slowly break into…
Bigger rocks
Tiny pieces
Water
Air
Explanation: Rocks break into tiny pieces that form soil.
Question 4 of 10
medium
Rocks can be…
Big boulders or tiny pebbles
Only huge
Only tiny
Always soft
Explanation: Rocks range from big boulders to small pebbles.
Question 5 of 10
easy
Most plant roots grow in the…
Clouds
Solid bedrock
Topsoil
Air
Explanation: Roots grow mostly in the rich topsoil.
Question 6 of 10
easy
Many small animals like worms and ants live in the…
Sky
Soil
Sea only
Fire
Explanation: Soil is home to many small creatures.
Question 7 of 10
medium
We can protect soil by planting…
Metal sheets
Plastic
Glass
Trees and grass
Explanation: Plant roots hold soil in place and protect it.
Question 8 of 10
easy
The hard solid material that makes up much of the ground is…
Rock
Cloth
Paper
Glass
Explanation: Rock makes up much of the solid ground.
Question 9 of 10
medium
Granite is a very ___ rock used to build floors.
Hard
Soft
Wet
Light
Explanation: Granite is a hard, strong rock.
Question 10 of 10
easy
Rocks differ in their…
Smell only
Names only
Sounds only
Hardness, colour and weight
Explanation: Rocks vary in hardness, colour and weight.