WorksheetsGrade 9 Geography (Rocks)
Total questions: 10
Worksheet time: 5mins
Rock is...
A mixture of sand
A mixture of minerals
A mixture of calcium carbonate
Granite has...
Three colours
Two colours
One colour
Four colours
Sandstone is made out of...
Mainly quartz, often mixed with calcite
The shells of sea creatures
Mainly quartz, often mixed with feldspars
How many known minerals are there?
6000
5000
10000
8000
1000
How many common minerals are there?
50
10
20
100
What is a mineral?
A natural compound
A mixture of atoms
A mixture of oxygen and carbon dioxide
Select the correct steps of the rock cycle.
Sand ➜ sedimentary rock ➜ metamorphic
rock ➜ igneous rock
Sedimentary rock ➜ sand ➜ igneous rock
Igneous rock ➜ metamorphic rock ➜ sand
Arrange the soil profile in order:
1) Topsoil
2) Subsoil
3) Weathered rock
4) Humus
5) Bedrock
1,3,4,2,5
3,2,4,1,5
4,1,2,3,5
5,4,3,2,1
What is humus?
Solid rock
A thin layer of rotting vegetation
A layer of cows and chickens
A layer of sand
What is bedrock?
Sand
Solid plastic
Solid rock
Weathered rock
