UK landscapes: keywords

• biological weathering

  roots of plants/trees break down rocks
• chemical weathering

  weak chemicals in rainwater/atmosphere break down rocks
• erosion

  wearing away of rocks
• extrusive rock

  magma cools on surface of the earth
• geology

  structure & type of rock found in an area
• glacier

  mass of ice that moves slowly downhill
• igneous rock

  formed by cooled, solidified magma
• impermeable

  doesnt let water pass through
• intrusive rock

  magma cools inside earth
• mass movement

  material moves down a slope due to GRAVITY
• physical weathering

  rocks broken down by changes in WEATHER & CLIMATE eg freeze thaw weathering
• metamorphic rocks

  rocks subjected to tremendous heat, causing them to change into another type of rock
• permeable

  lets water pass through
• sedimentary rocks

  formed by compressed sediments over millions of years
• sliding

  large amount of material slides down river banks
• slumping

  large land moving down a slope rotationally
• soil creep

  slow movement of soil; pulled down a slope which has a ripple effect
• weathering

  breaking down of rocks