Own Knowldge - Evolving Physical

Question 1

Sedimentary rocks

Answer 1

Formed of small particles that have been eroded + transported + deposited in layers

Question 2

Example of sedimentary rocks

Answer 2

Limestone + chalk

Question 3

Features of sedimentary rocks

Answer 3

Compressed + can be permeable / impermeable + soft + less resistant to erosion

Question 4

Igneous rocks formation

Answer 4

Created by volcanic activity when magma or lava cools, forming rocks made of crystals

Question 5

Examples of Igneous rocks

Answer 5

Granite

Question 6

Features of igneous rocks

Answer 6

Hard + resistant to erosion

Question 7

Metamorphic rock formation

Answer 7

Existing rocks that have been morphed/changed by extreme heat or pressure + usually comprised of layers

Question 8

Examples of metamorphic rocks

Answer 8

Slate = which is compressed shale

Question 9

Metamorphic rocks features

Answer 9

Very hard + resistant to erosion

Question 10

How did tectonic processes help shape the overall landscape today

Answer 10

• millions of years ago Britain was much closer to plate boundaries
• active volcanoes + plate movements caused massive folds + faults in the rocks

Question 11

How did tectonic processes shape the uplands

Answer 11

• around 300 million years ago tectonic processes caused molten magma, under intense pressure, to rise through the earths crust
• some magma reached the surface as lava while some cooled + solidified underground
• the areas above ground cooled + solidified and are now areas of high relief eg. Dartmoor in Devon

Question 12

What are the uplands formed from

Answer 12

Harder, more resistant rock that have eroded at a much slower rate

IGNEOUS + METAMORPHIC

Question 13

What are lowland made from

Answer 13

Softer + younger sedimentary rocks = less resistant to erosion

Question 14

Example of upland area

Answer 14

Dartmoor in Devon

Question 15

Example of lowland area

Answer 15

North + South Downs in south - east England

Question 16

How has the uplands been shaped

Answer 16

Tectonic activity + glaciation

Question 17

How did Dartmoor form

Answer 17

• dome of magma developed underground
• cooled to form granite + cracks known as joints
• joints made it vulnerable to freeze thaw weathering
• overtime as the granite became exposed on the surface, erosion + mass movement removed broken up granite downhill
• blocks of rocks left standing
• these forms tors eg. Bower man’s Nose surrounded by clitter slopes

Question 18

What is a scarp slope

Answer 18

Steep slope

Question 19

What is a dip slope

Answer 19

Gentler slope