Volcanoes And Earthquakes

Question 1

A vibration caused by an earthquake

Answer 1

Seismic wave

Question 2

An instrument that detects and records vibrations

Answer 2

Seismometer

Question 3

An instrument that detects and records earthquakes; shows seismic waves as curvy lines along a graph

Answer 3

Seismograph

Question 4

Bridges building and roads were wrecked because of the _________________ earthquake

Answer 4

San Francisco

Question 5

____________________ affected people by destroying 250

Answer 5

Mount saint helens

Question 6

Earthquakes affect the environment by knocking down trees and causing

Answer 6

Landslides

Question 7

Volcanoes affect the environment by _______________ the air

Answer 7

Pulluting

Question 8

Volcanoes affect the environment by animals losing their

Answer 8

Habitats

Question 9

Volcanoes affect the environment by the hot can burn forests

Answer 9

Lava

Question 10

Is a mountain that builds up around an opening in the earths crust

Answer 10

Volcano

Question 11

Volcanoes occur at openings in the earths

Answer 11

Crust

Question 12

Volcanoes can affect plants by __________ the plants

Answer 12

Killing

Question 13

Can help plants grow

Answer 13

Volcanic soil

Question 14

Is a sudden shaking of the earths crust

Answer 14

Earthquake

Question 15

Sudden movement along a _________ is what causes earthquakes

Answer 15

Fault

Question 16

An ocean earthquake may cause a

Answer 16

Tsunami

Question 17

Is a line of weakness in rocks

Answer 17

Fault

Question 18

Giving people advance notice of earthquake and volcanoes can help keep them

Answer 18

Safe

Question 19

Natural hazards have helped scientists understand more about the earth’s

Answer 19

Structure