Mass Movements

The movement of rock fragments down an incline as a result of gravity.

• Weathering
• Mass Movement
• Talus
• Slip and Slide

A pile of rocks that accumulate at the base of a slope.

• Weathering
• Mass Movement
• Talus
• Slip and Slide

Sudden movement of loose rock and soil down a slope of a hill, mountain or cliff.

• Creep
• Rockslide
• Debris flow
• Slump

Slow, downhill movement of rock and soil; it will cause fixed objects such as trees, fence posts, light poles in soil to lean downhill.

• Slump
• Rockslide
• Debris flow
• Creep

A mass of loosened rock and soil moves downhill in one large chunk.

• Slump
• Rockslide
• Debris flow
• Creep

After many years, a gravestone on a hillside falls over. This is an example of ...

• creep
• rockslide
• slump
• debris slide

What causes all mass movement

• rain
• snow
• gravity
• deforestation

Why is planting trees on a muddy slope a good idea to prevent mudflows and landslides?

• The tree roots soak up water
  
• The trees keep the soil in place
  
• Trees add homes for wildlife
  
• Tree roots soak up water and keep soil in place
  

This is a picture of a

• slump
• creep
• debris flow
• rock slide

This is a picture of a

• creep 
• slump
• mudflow
• landslide