Different Rock Formations

Question 1

Igneous

Answer 1

Lava hardens as it cools during which rocks form crystals

Question 2

Sedimentary

Answer 2

Layer of sediment are compacted together until they become solid rock

Question 3

Metamorphic

Answer 3

Formed when other rocks (igneous, metamorphic) are changed by heat and pressure. New rocks are usually harder and more compact

Question 4

Chalk

Answer 4

Purer younger form of lime stone. Very porous medium resistance but stronger than clays and younger sands

Question 5

Limestone - charicteristics

Answer 5

Not very resistant easily scratched

Question 6

Clay

Answer 6

muds diposited by rivers or at sea

Soft and crumbly generally weak and when compacted it becomes shale

Question 7

Granite

Answer 7

Formed from magma cooling deep underground

Contains crystals and is very resistant

Question 8

Schist

Answer 8

Formed by metamorphis of slate where it partly partly melted and soldifies
Very resistant

Question 9

Slate

Answer 9

Formed from heated muds or shale

Very resistant