mechanical weathering

Question 1

What is freeze thaw action

Answer 1

(draw diagrams)

1. by day water collects in rocks in the cracks
2. at night the water freezes and expands by 10 percent
3. repeated freeze thaw action causes the rocks to shatter. it falls to the bottom of the slope as scree

Question 2

wht is the use, colour, texture, location and formation of basalt

Answer 2

road building
grey black
giants causway
smooth
basalt cools very quivkly when lava reaches the surface

Question 3

what is the use, colour texture, location, and formation of granite

Answer 3

gravestnes fireplaces
pink green white
coarse
wicklow mts
granite cools over millions of years and the minerals in the lava form very large crystals

Question 4

what is the colour, texture, use, formation and location of sandstone

Answer 4

brown red
grainy
macgillicuddys
monuments
large amount od sand worn away from earths crust. sand built up over time and compressed and cemented together

Question 5

what is the colour , texture, location, use and formatio n of sandstone

Answer 5

cream grey
coarse
the burren
building roads
remains of dead sea creatures and shells and fish bones pile up on the sea bed. over millions of years they are compressed and cemented together