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Classifying Rocks and the Rock Cycle
How many types of rock can you name?

Classifying Rocks and the Rock Cycle

This Geography quiz is called 'Classifying Rocks and the Rock Cycle' and it has been written by teachers to help you if you are studying the subject at high school. Playing educational quizzes is a user-friendly way to learn if you are in the 9th or 10th grade - aged 14 to 16.

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Understanding physical geography and landforms is a crucial part of any high school geography syllabus. From mountains to beaches, the surface scenery is heavily influenced by the rocks beneath the surface and by what has happened to them. The first step to understanding the processes that give us the countryside we see around us is to discover the three main groups of rock and how they are related to each other.

1.
Magma is ...
solid rock
liquid rock
gaseous rock
a mixture of all three rock types
Some students confuse magma and lava. Lava is a word used to describe magma that has flowed out onto the surface of the Earth
2.
Which of the following is a property of a metamorphic rock?
Porous
Soft and easily eroded
Formed because of enormously high temperature and pressure
Made by the action of flowing water
They are usually very resistant to weathering and erosion
3.
Where do metamorphic rocks form?
Under mountain ranges
On the beds of seas and lakes
At the sea shore
In volcanic craters at the surface of the Earth
The temperatures and pressures needed to make most metamorphic rocks are only found where plates are colliding. The greatest pressures and temperatures are found under mountain ranges but there are exceptions to this, e.g. marble can be formed well away from plate boundaries
4.
Which of the following describes weathering?
The breaking down of rocks where they are found
The breaking down of rocks during transport
Rain falling on a piece of rock
A rock dissolving in acid
The last two alternatives could be a part of weathering, the full description is the first answer
5.
Which type of rock can become an igneous rock?
Igneous
Metamorphic
Sedimentary
Any
Any rock, if it is melted and then solidified, becomes an igneous rock
6.
Rocks that are formed from lava are called ...
intrusive igneous rocks
extrusive igneous rocks
magma
metamorphosed sedimentary rocks
Extrusive rocks are formed at the surface of the Earth
7.
Which of the following statements about the rock cycle is not true?
All rocks can undergo weathering and erosion to form sedimentary rocks
Igneous rocks are formed when other rocks are melted and then solidified
Metamorphic rocks are formed by heat and pressure
Metamorphic rocks are the end product of the rock cycle
Any rock can be changed into any other type of rock during the rock cycle
8.
Sedimentary rocks are formed ...
in volcanoes
deep under mountain ranges
on the sea bed
on the side of a mountain
They can also be formed on the beds of lakes or other places where the flow of water is very slow and there are even sedimentary rocks that have formed from sand in deserts!
9.
Rocks that are made from small particles formed by weathering and erosion are ...
igneous rocks
sedimentary rocks
metamorphic rocks
mud
Weathering and erosion is a constant but very slow process
10.
How are metamorphic rocks formed?
By melting other rocks
By heating and compressing other rocks
By cooling other rocks
By dissolving other rocks
Some metamorphic rocks are formed mainly by the pressure caused by being deeply buried. Others are formed mainly by the heat from nearby molten magma and some are formed equally from the heat and pressure of being buried deep in the Earth
Author:  Kev Woodward

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