Erosion and Mass Movement

Rain washing away soil from a hillside

• Weathering
• Erosion
• Deposition

Waves dropping sand on the beach

• Weathering 
• Erosion
• Deposition

Wind blowing sand from one location to another

• Weathering
• Erosion
• Deposition

Wind blasting sand at rock and carving out arches

• Weathering
• Erosion
• Deposition

Muddy water being carried away by a fast-moving river

• Weathering
• Erosion
• Deposition 

Rocks being made smooth by tumbling across a streambed

• Weathering
• Erosion
• Deposition

What is mechanical weathering?

• Process through which rocks are physically broken into smaller pieces.
• Rocks are broken down through chemical changes.
• Rocks are worn away from acid in plant roots.
• Rocks broken down by machinery.

What is a type of mass movement by gravity?

• dune
• loess
• glacier
• mudslide

What triggers mudslides?

• ice
• rain
• wind
• temperature

Which type of sediment will be dropped first as the wind slows?

• biggest
• smallest
• heaviest
• lightest