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Science Quiz - Rocks (Questions)

Rocks may seem unchanging, but they tell a story of Earth's history. In KS2 Science, pupils discover how rocks form, change, and shape our planet.

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Fascinating Fact:

The rock cycle shows how rocks can change from one type to another over long periods of time.

In KS2 Science, pupils explore how rocks form, including igneous, sedimentary, and metamorphic types. They also learn about soil, fossils, and how rocks record Earth's natural history.

Key Terms

Igneous Rock: Rock formed from cooled molten lava or magma, like basalt or granite.
Sedimentary Rock: Rock made from layers of particles pressed together, often containing fossils.
Metamorphic Rock: Rock changed by heat or pressure, such as marble or slate.

Frequently Asked Questions (Click to see answers)

What are the three main types of rock in KS2 Science?

The three types are igneous, sedimentary, and metamorphic. They are formed in different ways but can all change through the rock cycle.

How are fossils formed in rocks?

Fossils form when plants or animals are buried in sediment. Over millions of years, the sediment hardens into rock, preserving their shapes.

What is the rock cycle?

The rock cycle is a natural process where rocks change form between igneous, sedimentary, and metamorphic types over long periods of time.

Try These Related Quizzes

1.

Which one of the following is not a type of rock?

[ ]	Organic
[ ]	Igneous
[ ]	Sedimentary
[ ]	Metamorphic

2.

Which type of rock is formed when other rocks are put under huge amounts of heat or pressure?

[ ]	Organic
[ ]	Igneous
[ ]	Sedimentary
[ ]	Metamorphic

3.

Which type of rock is formed from mud or shells?

[ ]	Organic
[ ]	Igneous
[ ]	Sedimentary
[ ]	Metamorphic

4.

Which type of rock is formed from cooled lava or magma?

[ ]	Organic
[ ]	Igneous
[ ]	Sedimentary
[ ]	Metamorphic

5.

Which rock can float on water?

[ ]	Sponge
[ ]	Pumice
[ ]	Diamond
[ ]	Granite

6.

Which of these rocks is white?

[ ]	Basalt
[ ]	Obsidian
[ ]	Chalk
[ ]	Slate

7.

'Durability' means 'able to withstand wear and tear'. Which of these rocks has the greatest durability?

[ ]	Chalk
[ ]	Sandstone
[ ]	Siltstone
[ ]	Granite

8.

Fossils can be found in which type of rocks?

[ ]	Sedimentary
[ ]	Igneous
[ ]	Metamorphic
[ ]	All of the above

9.

What does 'permeability' mean?

[ ]	How magnetic a material is
[ ]	How well a material allows another substance to pass through it
[ ]	How heavy a material is
[ ]	How effective a thermal insulator a material is

10.

Why is slate often used to make roof tiles?

[ ]	Because slate is impossible to break
[ ]	Because slate is not too durable
[ ]	Because slate is heavy and permeable
[ ]	Because slate is durable and impermeable

You can find more about this topic by visiting BBC Bitesize - Rocks

Science Quiz - Rocks (Answers)

1.

Which one of the following is not a type of rock?

[x]	Organic
[ ]	Igneous
[ ]	Sedimentary
[ ]	Metamorphic

Organic usually means to do with living things

2.

Which type of rock is formed when other rocks are put under huge amounts of heat or pressure?

[ ]	Organic
[ ]	Igneous
[ ]	Sedimentary
[x]	Metamorphic

'Metamorphosis' means 'to change form'. Diamonds, which are formed from carbon, are examples of metamorphic rocks

3.

Which type of rock is formed from mud or shells?

[ ]	Organic
[ ]	Igneous
[x]	Sedimentary
[ ]	Metamorphic

Limestone is an example of sedimentary rock

4.

Which type of rock is formed from cooled lava or magma?

[ ]	Organic
[x]	Igneous
[ ]	Sedimentary
[ ]	Metamorphic

Granite is an example of an igneous rock

5.

Which rock can float on water?

[ ]	Sponge
[x]	Pumice
[ ]	Diamond
[ ]	Granite

Pumice can float because its density is so low - less than that of water!

6.

Which of these rocks is white?

[ ]	Basalt
[ ]	Obsidian
[x]	Chalk
[ ]	Slate

The famous White Cliffs of Dover are made of chalk

7.

'Durability' means 'able to withstand wear and tear'. Which of these rocks has the greatest durability?

[ ]	Chalk
[ ]	Sandstone
[ ]	Siltstone
[x]	Granite

Aberdeen in Scotland is known as Granite City because of the abundance of the rock found there. Aberdeen granite was used to build the House of Parliament in London

8.

Fossils can be found in which type of rocks?

[x]	Sedimentary
[ ]	Igneous
[ ]	Metamorphic
[ ]	All of the above

Sedimentary rocks are formed when layers of mud, dust or shells (sediment) are placed under great pressure from the layers of sediment above them. Living organisms which fall into underwater sediment may eventually become fossils

9.

What does 'permeability' mean?

[ ]	How magnetic a material is
[x]	How well a material allows another substance to pass through it
[ ]	How heavy a material is
[ ]	How effective a thermal insulator a material is

A rock's permeability means how well it allows water to pass through it

10.

Why is slate often used to make roof tiles?

[ ]	Because slate is impossible to break
[ ]	Because slate is not too durable
[ ]	Because slate is heavy and permeable
[x]	Because slate is durable and impermeable

Slate weathers very well and doesn't let the rain through - these are perfect qualities for a roof