Chapter 9 - Changes to Earth's Surface

​ (a)   can be different sizes and shapes.

• landforms
• weathering
• erosion
• deposition

Rocks in Earth’s crust are slowly being broken into smaller pieces in a process called ​ (a)  

• weathering
• erosion
• deposition
• landslide

In ​ (a)   weathering, only the size of rocks is changed.

• physical
• chemical
• deposition
• erosion

​ (a)   is the movement of pieces of soil or rock by mechanisms including gravity, wind, water, ice, or plants or animals.

• erosion
• weathering
• deposition
• volcano

As moving water ​ (a)   , the larger pebbles settle on the bottom first.

• slows
• speeds
• stops
• dries

The force of Earth’s gravity pulls all objects from ​ (a)   places down to ​ (b)   places.

 

• higher
• lower
• gravity
• neutral

Strong winds, earthquakes, and explosions can trigger ​ (a)  

• avalanches
• landslides
• volcano
• erosion

When magma flows out of the volcano, it is known as ​ (a)  

• lava
• magma
• hail
• ash

The temperature and the kind of rocks that makes up the magma determines the type of ​ (a)  

• eruption
• landslide
• erosion
• avalanche

A ​ (a)   is a break or crack in rocks where Earth’s crust can move.

 

• fault
• epicenter
• volcano
• earthquake