13
Assessment
Choose the letter which corresponds to the correct answer by writing it on your
answer sheet/notebook.

1. Which of the following words is NOT associated with metamorphism?
A. heat
B. mantle
C. pressure
D. weathering

2. What is the effect of heat and pressure in rocks as there is an increase in depth?
A. foliation surfaces shine
C. grain size becomes coarse
B. low-grade metamorphism D. increase in mineral alignment

3. What is the main factor that affects regional metamorphism?
A. heat
B. fluid
C. water
D. pressure

4. What are the main factors for contact metamorphism to occur?
A. air and water
c. temperature and water
B. heat and reactive fluid
D. pressure and temperature

5.Which of the following rock samples is less influenced by the heat?
A. phyllite B. gneiss
C. schist
D. slate

6. Which of the following is NOT true about metamorphism?
A. Slate and gneiss are examples of foliated rock.
B. Contact metamorphism creates non-foliated rocks,
C. Pressure is the main factor of contact metamorphism.
D. Magma will bake the surrounding rocks due to different in temperature.

7. What happens to the grain size of the minerals in rocks when the heat is increased?
A. increases
B. decreases
C. remains constant
D. degrades intermittently​