Weathering

What are the three different types of weathering?

• Mechanical weathering

• Organic Weathering

• Chemical Weathering

• Destructive weathering

What does sand come from?

• Rocks that have been broken down

• Islands that have been broken down

• water that pushes the island

• None of the above

What is chemical weathering?

• changes the chemical structure of rocks

• is caused by living things

• Is caused by acid rain

• breaks rocks into smaller pieces and changes their shapes.

What is the process through which rocks break down?

• erosion

• depostion

• weathering

• tornadoes

After weathering breaks rocks apart, _______ moves the pieces to other places to be deposited or set down.

• weathering

• deposition

• erosion

What is mechanical weathering?

• It breaks rocks into smaller pieces and changes the shape

• it changes the chemical structure

• it is caused by living things

In organic weathering, (a)   may grow in a crack in a rock. As the root gets larger, the crack gets bigger until the rock splits apart.

In the class experiment, the vinegar represented

• erosion

• chemical weathering

• organic weathering

• mechanical weathering

In the class experiment, the rock salt represents what kind of weathering...

• chemical weathering

• mechanical weathering

• organic weathering

• erosion