Worksheet: Rapid Changes to Earth's Surface: Volcanoes, Floods, Landslides, and Earthquakes

In this worksheet, we will practice recognizing the processes that cause changes to the Earth's surface.

Q1:

Where do most earthquakes happen?

  • AMost earthquakes happen at the North and South Poles.
  • BMost earthquakes happen along a fault line where Earth’s plates meet.
  • CEarthquakes happen in every country in the world.

Q2:

What is the effect of landslides, earthquakes, and volcanic eruptions on the surface of Earth?

  • AParts of Earth’s surface change quickly
  • BParts of Earth’s surface change slowly

Q3:

What is the name given to the molten rock below Earth’s surface?

  • AMagma
  • BLava

Q4:

In 1935, An American scientist named Charles Richter invented a way of measuring the strength of earthquakes.

Strength (Magnitude) 0-2 2-3 3-4 4-5 5-6 6-7 7-8 8 and above
Effects Not felt by people Felt a little by people Ceiling lights swing Walls crack Furniture moves Some buildings collapse Many buildings destroyed Total destruction of buildings, bridges, and roads

What is the name of the scale used to measure the magnitude (strength) of earthquakes?

  • AThe earthquake scale
  • BThe Richter scale
  • CThe Charles scale

At which magnitude on the Richter scale does damage to buildings, bridges, and roads occur?

  • A7–8
  • B4–5
  • C6–7
  • D8 and above

Q5:

In the desert you can find hills made out of sand that are caused by wind erosion. What is the name given to these hills?

Sand dunes in the desert-Cropped
  • AOases
  • BVolcanoes
  • CDunes

Q6:

After a volcanic eruption, new land forms on top of the old land. What is the new land made from?

Volcanic eruption
  • ALava
  • BVolcanic ash

Q7:

What is an earthquake?

  • AA movement of rock, earth, or debris down a slope
  • BA storm with a violent wind
  • CA sudden movement of the Earth’s crust

Q8:

An earthquake happens when large slabs of rock move against each other below Earth’s surface. The slabs touch each other at a fault line.

What is a fault?