Weathering

Underground caverns are an example of weathering and erosion. Their formation might be best explained by which choice?

• Wind weathers and erodes rock particles.

• Cold temperatures cause ice to form and break rock apart.

• Groundwater dissolves minerals, forming underground cavities.

• Gravity moves particles of rock downhill.

What is happening in the picture?

• weathering

• erosion

• depostion

• flooding

Tags

NGSS.MS-ESS2-2

How do the processes of weathering and deposition differ?

• Weathering breaks down rocks and deposition leaves them in new places

• Weathering has to do with air and deposition has to do with plants

• Weathering occurs only in summer and deposition occurs year-round

• Weathering can be chemical or physical and deposition is only chemical

Tags

NGSS.MS-ESS2-2

Which of these is the BEST example of physical weathering?

• Sediment piling up at the mouth of a river

• Plant roots growing through concrete and splitting it

• Waves carrying sand away from a beach

• Small rocks being carried along a river bed

What is the definition of weathering?

• the process of sediment being carried off

• the process of rock being broken down

• tiny pieces of broken rock

• animals or people breaking down rocks

What is happening at the top of the picture?

• weathering

• erosion

• deposition

Tags

NGSS.MS-ESS2-2

True or False: Water getting into cracks, freezing, and breaking the rocks apart is an example of weathering.

• True

• False

What is the definition of chemical weathering?

• the process of sediment being carried off

• the process of rock being broken down

• weathering caused by chemical reactions - mainly reactions with water

• animals or people breaking down rocks

Tags

NGSS.MS-PS1-2

What is the definition of mechanical weathering?

• weathering caused by elements such as wind and other rocks

• the process of sediment being dropped in a new location

• tiny pieces of broken rock

• animals or people breaking down rocks

What is the definition of biological weathering?

• the process of sediment being carried off

• weathering caused by chemical reactions - mainly reactions with water

• animals or people breaking down rocks

• weathering caused by elements such as wind and other rocks