Weathering

Weathering is the process that

• Breaks down rocks into fragments and eventually sediments

• What it looks like when it rains

Soil formation depends on sediments from weathering, and those bits make up sedimentary rocks.

• True

• False

Nothing can change the Earth's surface over time.

• True

• False

Mechanical weathering

• is when fake snow is made with a machine

• Breaks down rocks without changing their chemical composition

What forces can cause mechanical weathering?

• growing plants, expanding ice, lightning, and mineral crystal growth. 

• Dead plants, rocks that are puzzles, cloudy days and surprise caves. 

Plant roots never need water or nutrients to grow

• True

• False

The freezing and thawing of ice can cause rocks to ____________.

• expand

• break apart

What is chemical weathering?

• When rain turns to acid and causes the clouds to have more thunder than normal.

• When water, air, or other substances react with the minerals in rocks, soil, and building materials to change their chemical composition

Over thousands of years, chemical weathering can cause a cave to form.

• True

• False