Unit 7 lesson 1

How does a canyon such as the Grand Canyon form?

• Earth quakes cause rocks to break and form a canyon.

• Rain and snow cause rocks to dissolve to form a canyon.

• Rock layers are put down in two places to form a canyon.

• A river carves down into rocks to form a deep canyon.

The 75% of the earthquakes occur along the edges of the Pacific Ocean. This active area is called ?

• The circle of fires

• The ring of earth quakes

• The ring of volcanoes

• The ring of fire.

________________________ is used to detect and measure the energy released by earthquakes.

• Thermometer

• Seismometer

• Calorimeter

• Galvanometer

How rivers can change the land scape?

• A river can cause rocks to break and form a canyon.

• A river can cause rocks to bend to form arches.

• A river can cause grooves in rocks.

• A river carves down into rocks to form a deep canyon.

How an earthquakes change the layers of the rocks?

• can cause rocks to break and form a canyon.

• can cause rocks to bend to form arches.

• can cause cracks and break the rocks.

• carves rocks to form a deep canyon.

______________________________ deep below Earth’s surface can cause rocks to slowly bend and change.

• Canyons

• Earth quakes

• Pressure and high temperatures

• Glaciers

How glaciers are changing the rock layers?

• Carve arches

• Carve deep canyons

• Carve grooves and canyons

• Carve natural bridges

A _____________________ is a landform or feature of sand, gravel, and rock that has been deposited by a glacier.

• Ice Caps

• Ice sheets

• Moraines

• Grand canyon

The ridges that form to the sides of the glacier’s path are called

• Lateral moraines

• Terminal moraines

A pile of debris that forms at the advancing end of a glacier is called

• Lateral moraines

• Terminal moraines