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

In this worksheet, we will practice identifying, classifying, and describing quick changes to Earth’s surface.


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.


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


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

  • AMagma
  • BLava


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

Strength (Magnitude)0-22-33-44-55-66-77-88 and above
EffectsNot felt by peopleFelt a little by peopleCeiling lights swingWalls crackFurniture movesSome buildings collapseMany buildings destroyedTotal 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


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


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


What is an earthquake?

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


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?

  • AA crack in Earth’s crust
  • BA type of rock
  • CA type of lava


A landslide is the movement of rocks, debris, or earth down a slope due to gravity.

Many things can trigger a landslide, such as earthquakes, melting snow, volcanic activity, or disturbance by human activities.

What do you think has caused the landslide shown in the diagram?

  • AA volcanic eruption
  • BMelting snow
  • CAn earthquake
  • DHeavy rainfall


The image shows what happens during a landslide. Which of the given definitions explains what a landslide is?

  • AAn opening in Earth’s surface where molten rock is forced out
  • BA type of earthquake
  • CA sudden movement of soil from higher ground to lower ground


Earthquakes are caused by the movement of rocks below Earth’s surface. What happens to land during an earthquake?

  • AThe land stays still.
  • BThe land shakes.
  • CThe land erodes.


A landslide happens when a large amount of rock and soil slide down a mountain. Which of these is evidence that a landslide might have occurred?

  • APiles of dirt and rock on a roadway
  • BWater overflowing a river
  • CFlowing lava


Fill in the blank: Hot ash and lava are blown onto Earth’s surface when a volcano .

  • Astops moving
  • Berupts
  • Ccools down


Fill in the blank: During a landslide, broken pieces of large and small rocks move downhill due to a force called .

  • Aerosion
  • Bgravity

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