Rocks and weathering

Question 1

Porous

Answer 1

Many small holes takes in liquid or air

Question 2

Why are rocks continually changing

Answer 2

Due to processes like weathering and erosion

Question 3

What is the rock cycle

Answer 3

Rocks being gradually recycled over millions of years changing between the different rock types

Question 4

Igneous rock

Answer 4

Formed from the cooling of molten rock

Question 5

Sedimentary rock

Answer 5

Formed by small rock pieces being transported in rivers and laid down in layers

Question 6

Metamorphic rock

Answer 6

Formed from another existing rock, changed by high heats and extreme pressures

Question 7

Weathering

Answer 7

When rocks are broken down into smaller ones

Question 8

Biological weathering

Answer 8

Rocks being broken up by the roots of plants or animals burrowing into them

Question 9

Chemical weathering

Answer 9

Rocks being broken up because substances in rainwater, seawater or rivers, or the air react with the minerals in the rocks

Question 10

Physical weathering

Answer 10

Rocks being broken up by changes in temperature, freezing and thawing of trapped water or the action of waves and rivers

Question 11

Erosion

Answer 11

When rocks are gradually worn down and move away from the original rock