Question

click and drag the bottom boxes into the correct column.
weathering
erosion
deposition
a fast - moving river carries rocks downstream
the soil from a hillside is washed away by rain
fast running water causes rocks to hit one another breaking them into smaller rocks
waves dropping sand on the beach
plant roots grow in a rock and cause it to split
sand is dropped when the wind stops blowing and forms sand dunes
wind blowing sad from one location to another
rainwater enters the cracks of a rock, freeze, and causes the rock to break apart
a mudslide flowing down a steep hill
when glaciers melt, they drop the rocks they were carrying
flood water pounds against a wall and wears it down.
layers of sediment forming at the bottom of the ocean

Explanation:

Weathering is the breaking - down of rocks. Erosion is the movement of sediment. Deposition is the dropping of sediment. We categorize based on these definitions.
Fast - running water causing rocks to break is weathering. Plant roots splitting a rock is weathering. Rainwater in rock cracks causing breakage is weathering.
A fast - moving river carrying rocks is erosion. Soil washed away by rain is erosion. Wind blowing sand is erosion. Flood water wearing down a wall is erosion. A mudslide flowing is erosion.
Waves dropping sand on the beach is deposition. Sand dropping when wind stops is deposition. Glaciers dropping rocks when they melt is deposition. Layers of sediment forming at the ocean bottom is deposition.

Answer:

Weathering: Fast running water causes rocks to hit one another breaking them into smaller rocks, Plant roots grow in a rock and cause it to split, Rainwater enters the cracks of a rock, freeze, and causes the rock to break apart
Erosion: A fast - moving river carries rocks downstream, The soil from a hillside is washed away by rain, Wind blowing sand from one location to another, Flood water pounds against a wall and wears it down, A mudslide flowing down a steep hill
Deposition: Waves dropping sand on the beach, Sand is dropped when the wind stops blowing and forms sand dunes, When glaciers melt, they drop the rocks they were carrying, Layers of sediment forming at the bottom of the ocean