yazied 7 science ( F) unit 1 lesson #1

Rocks and other materials that make up Earth’s surface are matter, so they can not be created or destroyed!

• true

• false

(a)   is the process by which rock materials are broken down by the action of physical and chemical processes.

___________is the process by which rock materials are broken down by the action of physical and chemical processes.

• weathering

• erosion

• sediment

Erosion changes rocks by breaking them into smaller and smaller pieces, or by dissolving and removing some chemicals within the rock.

• true

• false

(a)   changes rocks by breaking them into smaller and smaller pieces, or by dissolving and removing some chemicals within the rock.

Fragments of weathered rock, are called (a)  

(a)   can build up in layers on Earth’s surface to form rock formations, sand dunes, and other features.

Weathering !

• transporting weathered materials from one location to another

• dissolving and removing some chemicals within the rock.

• changing rocks by breaking them into smaller and smaller pieces.

• occurs when eroded materials are dropped or laid down .

Some rocks are more resistant to weathering than other rocks.

• true

• false

___________and _____________weathering are the two main types of weathering.

(a)