Worksheet Mass Movements
A. Identify each type of mass movement:
Rockslide – Landslide – Rock fall- Mudflow – Creep
B. Choose the correct answer:
1. Which is the underlying force that causes all forms of mass movement?
a. Gravity
b. Weather
c. Rock type
2. Which is a way to reduce the risk of mass movements?
a. Build homes in steep terrain in order to stabilize the slope.
b. Avoid construction and structures on vulnerable slopes.
c. Develop hillsides with roads so they become stable.
3. Which of the following does not promote mass movement?
a. Steep slopes
b. Forest fires
c. Heavy rainfall
d. All of the above promote mass movements
4. Which of the following situations won’t result in mass movement?
a. A slope with loose material saturated with water
b. A slope with abundant vegetation
c. A rocky slope above a mountain road
5. Telephone polls getting tilt on a hill is an example of what type of mass movement?
a. Landslide
b. Mudflow
c. Creep
6. Why is planting trees on a muddy slope a good idea to prevent mudflows and landslides?
a. Trees add home for wildlife
b. Trees keep the soil in place
c. Tree roots soak up water
C. Use these terms below to complete the passage:
Creep- Mass movement – Mudflow- Landslide
A(n) ___________________ is a downward movement that results from gravity acting on loose
sediments and weathered rock. If the downward movement of loose material is slow, it is called
__________________, whereas the rapid movement of a mud and water mixture is known as a(n)
______________________. A rapid downslope slide of a thin sheet of Earth materials is a(n)
_____________________.
D. Match each term to its description:
Gravity – Earthquake– Slopes – Climate – Rockslide