Weathering, Erosion, and Deposition

Rocks being made smooth by tumbling across a streambed

• Weathering
• Erosion
• Deposition

Flood waters moving soil from one location to another

• Weathering
• Erosion
• Deposition

Plants prevent soil erosion by-

• holding dirt in place with their roots
• providing food for herbivores
• the process of photosynthesis
• releasing water into the atmosphere through transpiration

The process by which small pieces of rocks and soil are carried away to new locations is called...

• deposition
• erosion
• weathering
• faults

The process of breaking up rocks on Earth's surface is called...

• sediment
• erosion
• weathering
• deposition 

How does freezing water cause the weathering of rocks?  The freezing water—

• keeps the rocks in place
• makes the rocks last longer
• expands cracks and breaks rocks
• causes rocks to fall in landslides

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.

Sand settles on the beach after waves dropped it there. This is an example of...

• Weathering 
• Erosion
• Deposition
• Dragging

What type of weathering is it when acid rain breaks down and changes the rock?

• chemical weathering 
• physical weathering
• erosion

The ___________of a mountain weathers the fastest

• bottom
• middle
• top
• all parts weather the same