Grade 7 Geography - Earthquakes!

The outside layer of the earth is called ______________________.

• core

• crust

• mantle

• outer core

The huge pieces of the earth's crust are called ____________________________.

• crust

• tectonic plates

• directions

• seismos

Earthquakes occur along weaknesses in the earth's crust called ...

• gaps

• gap lines

• faults

• broken plates

What other type of natural hazard occurs in the same place as earthquakes?

• tsunamis

• volcanoes

• floods

• hurricanes

Tectonic plates move slowly and often grind against one another, resulting in...

• tectonic waves

• sound waves

• earthquake waves

• shock waves

The earth's crust is weakest along:

• mountainous areas

• ocean floors

• plate boundaries

• old part of the crust

Earthquakes under the ocean can lead to tsunamis.

• true

• false

The effect of an earthquake can lead to ......... (choose the answer that does not fit)

• a rather enjoyable experience like going to a theme park

• people becoming homeless

• gas and electrical pipes bursting and breaking causing fires

• buildings collapsing

People who live close to plate margins, are always at higher risk of experiencing earthquakes. How much an earthquake affects people in these areas depends on the following things. (Choose the one that does not fit.)

• how many people live in the area

• the quality of the buildings

• the strength of family bonds and other relationships

• how well an area is prepared for an earthquake

• the availability of people who can rescue and treat earthquake survivors

The following communities are considered to be at higher risk than others to experience earthquakes. Choose all the correct answers. There are 4.

• urban areas with large numbers of people

• rural areas where there are fewer people

• people who live close to the sea where earthquakes could lead to tsunamis

• places where buildings are poorly made that collapse easily

• communities with poor rescue plans and that don't have good communication links