Rocks

Question 0

Explain how an igneous rock is formed

Answer 0

An igneous rock is formed when lava or magma cools down

Question 1

Name the three different rock groups

Answer 1

Igneous
Sedimentary
Metamorphic

Question 2

What rock is formed when LAVA cools down

Answer 2

Basalt

Question 3

What rock is formed when MAGMA cools down

Answer 3

Granite

Question 4

How are sedimentary rocks formed

Answer 4

When existing rocks,plants and dead animals are worn down and compressed to form new rocks this happens mainly underwater

Question 5

Name two sedimentary rocks

Answer 5

Sandstone

Limestone

Question 6

How are metamorphic rocks formed

Answer 6

Metamorphic rocks are formed when rocks get changed by heat or pressure

Question 7

Give two examples of metamorphic rocks

Answer 7

Marble

Quartzite

Question 8

Name two features of an igneous rock

Answer 8

Basalt -
Fine-grained/smooth
Black or dark grey
Small crystals

Granite -
Coarse-grained
White, grey or black
Large crystals

Question 9

Name one feature of a sedimentary rock

Answer 9

Sandstone -
Red, grey or brown

Limestone -
Permeable (water seeps through)
Fossils generally found in them
Bedding planes, joints + startas

Question 10

Name two types of metamorphic rocks and what they were before they were changed

Answer 10

Marble - limestone

Quartzite - sandstone

Question 11

Name one feature of a metamorphic rock

Answer 11

Marble -
White, red or black

Quartzite -
Grey, white

Question 12

What uses does basalt have

Answer 12

Buildings, roads

Example:

Question 13

What uses does granite have

Answer 13

Buildings, kitchen work tops

Example: Wicklow mountains

Question 14

What uses does sandstone have

Answer 14

Buildings or road surfaces

Example: co. Kerry

Question 15

What uses does limestone have

Answer 15

Buildings, road surfaces and in the manufacture of cement

Example: the burren

Question 16

Give an example of a building that uses limestone and sandstone

Answer 16

Shandon Church Co. Cork

Question 17

Limestone covers how much of ireland?

Answer 17

40%

Question 18

What uses does marble have

Answer 18

Kitchen worktops, headstones and sculptors

Example: CONNEMARA MARBLE

Question 19

What uses does quartzite have

Answer 19

Road surfaces + glass making

Example: sugar loaf co. Wicklow

Question 20

Name three types of extracting rocks

Answer 20

Shaft mine
Open cast mining and quarrying
Drilling

Question 21

Name 3 advantages of quarries

Answer 21

• more jobs
• local council get income
• local roads are improved

Question 22

Name 3 disadvantages of quarries

Answer 22

• noise pollution
• parts of the countryside are destroyed
• old quarries get flooded and are dangerous

Question 23

Shaft mining is used for…?

Answer 23

Extracting rocks deeper into the ground

Question 24

Open-cast mining is used for…?

Answer 24

Extracting rocks close to the surface

Question 25

Drilling is used for…?

Answer 25

Extracting oil and gas