Mechanica lweathering

Question 1

What is mechanical weathering

Answer 1

Mechanical weathering breaks up rocks into smaller pieces by putting pressure on the rock

Question 2

Examples of mechanical weathering

Answer 2

Freeze thaw action

Question 3

What is freeze thaw action

Answer 3

It occurs high up in mountainous areas where there is a lot of precipitation and the temperature regularly rise and fall below freezing point

Question 4

Step 1 freeze that action

Answer 4

During the day water seeps into cracks in rocks

Question 5

Step 2 freeze thaw action

Answer 5

At night water temperatures fall below freezing point water cracks and freezes and expands by 9% putting pressure on the rock

Question 6

Step 3 freeze thaw action

Answer 6

Process continues Overtime widening cracks and joints in rock causing it to weaken and eventually piesces fall of

Question 7

What is broken down rock (freeze thaw action)

Answer 7

Scree

Question 8

Examples of freeze thaw action

Answer 8

Croagh Patrick Co.mayo