Rocks and Weathering

Mechanical weathering is 

• when the composition of rocks change.
• When the chemicals in the rock change.
• When the size of the rocks change without altering its compositoin
• None of the above.

Chemical weathering involves

• changes in density
• changes in volume
• changes in mass
• changes in the composition of the rock

Tags

NGSS.MS-ESS2-2

NGSS.MS-PS1-2

When water freezes, it expands. When water freezes in the cracks and pores of rocks, the force of its expansion is strong enough to split the rocks apart. This process is called

• Ice wedging
• Abrasion
• Exfoliation
• None of the above

Tags

NGSS.MS-ESS2-2

Water can wear down rocks on riverbeds and along shorelines by abrasion.

• Ice wedging
• Abrasion
• Exfoliation
• All of the above

Tags

NGSS.MS-ESS2-2

__________________is a process in which layers or sheets of rock gradually break off. This process is sometimes called onion-skin weathering, because the rock surface breaks off in thin layers similar to the layers of an onion.

• Abrasion
• Erosion
• Exfoliation
• None of the above

Tags

NGSS.MS-ESS2-2

Erosion is

• another name for weathering.
• change in the chemical make up of sediments.
• change in the size of sediments
• is transportation of weathered sediments.

Tags

NGSS.MS-ESS2-2

The breaking down of rocks and other materials at Earth’s surface is called _____________

• Gravity
• Erosion
• Cavities
• Weathering

Tags

NGSS.MS-ESS2-2

The two kinds of weathering are

• Igneous rock and sedimentary rock
• Igneous rock and mechanical weathering
• Mechanical and chemical weathering
• Igneous, sedimentary and metamorphic rocks

Freezing and thawing causes

• water to melt.
• ice wedging
• water to get evaporated.
• water to turn to gas

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

This type of scraping w hen rock particles scrape rock like sandpaper scrapes wood is called __________________

• ice wedging
• sculpting
• abrasion
• rusting