Weathering

What is weathering?

• A process that breaks down rocks into smaller pieces

• A shift in weather patterns

• The process by which mountains are formed

• The process by which the seasons change

Which of the following is an example of mechanical weathering?

• Rust forming on a rock cliff

• Acid rain causing blurred inscriptions on a ancient tomb

• Rounded pebbles in a river bed

• A sudden rainstorm on a hot day

Physical weathering is also known as ______________ weathering.

• chemical
• mechanical
• breakdown
• heat

Which of these can not cause physical weathering?

• wind
• ice
• plants
• acid rain

What type of weathering does this image display?

• physical
• chemical

Tags

NGSS.4-ESS2-1

Abrasion causes

• physical weathering.
• chemical weathering.
• both chemical and physical weathering.
• Neither chemical or physical weathering.

Tree roots cause

• physical weathering.
• chemical weathering.
• both chemical and physical weathering.
• neither chemical or physical weathering.

How does ice wedging 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 type of mechanical weathering causes landslides?

• Ice Wedging
• Exfoliation
• Gravity
• Abrasion

Abrasion is the process by which rocks

• become cemented together to form bigger rocks.

• become pitted (covered with small holes).

• are grinded against one another.

• break apart when water freezes.