11/29: Physical vs. Chemical Weathering Practice

Which statement accurately describes the difference between weathering and erosion?

• weathering is only caused by the weather, but erosion can be caused by more than just the weather

• weathering is when rocks break into smaller pieces, but erosion is when they are transported from one place to another

• weathering is when rocks are transported from one place to another, but erosion is when rocks break into smaller pieces

When a rock is crushed into powder or very small pieces,

• the surface area decreases and the composition changes

• the surface area decreases and the composition remains the same

• the surface area increases and the composition remains the same

• the surface area increases and the composition changes

Tags

NGSS.MS-PS1-2

Which climate conditions produce the greatest amount of chemical weathering?

• cold and dry

• hot and dry

• hot and humid

• cold and humid

Which climate conditions produce the greatest amount of mechanical/physical weathering?

• cold and dry

• hot and dry

• warm and humid

• cold and humid

A marble statue is left exposed to the weather. Within a few years, the details on the statue have begun to weather away. This weathering probably is caused by...

• oxygen in the air

• carbonic acid in rainwater

• lichens

• abrasion

Tags

NGSS.MS-ESS2-2

Ice wedging is an example of...

• chemical weathering: wear down rocks as they bounce together

• mechanical weathering: water expands when it freezes & cracks rocks

• chemical weathering: water expands when it freezes & cracks rocks

• mechanical weathering: peel away loosened material from the surface of rocks due to temperature changes.

Tags

NGSS.MS-ESS2-1

Describe how the size and shape of sediments will most likely change as they are weathered by River Abrasion

• rounder and smaller

• rounder and larger

• angular (has sharp edges) and larger

• angular (has sharp edges) and smaller

Tags

NGSS.MS-ESS2-2

How do plants weather rocks?

• during photosynthesis
• when roots grow into cracks of rocks and expand the rock
• when the plant moves water from the roots to the leaves

When water and oxygen cause a chemical reaction in iron to form rust (iron oxide).

• HYDROLYSIS

• OXIDATION

• THERMAL EXPANSION

• ABRASION

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

How were the caverns (caves) formed in Rock Layer A?

• chemical weathering: acid rain dissolving rock

• physical weathering: ice wedging in cracks

• physical weathering: root wedging in cracks

• chemical weathering: air reacts with rock creating rust

Tags

NGSS.MS-ESS2-2