SCIENCE 6
QUARTER 4
TEST REVIEW
A. Direction: Read carefully the sentences. Choose the
correct answer and write only the letter in your paper.
1. The following are the harmful effects of volcanic
eruption EXCEPT:
A. mudflow
C. volcanic landslide
Dash deposit
D. making the soil fertile
2. Which of the following will likely form when ash from
a volcanic eruption, and water from typhoon rains
combine?
A. acid rain
C. lava flow
B. fertilizer
D. mudflows
3. Which volcanic material refers to molten rocks inside
a volcano?
A. magma
B. lava flow
C. ash deposit D. volcanic rock
4. Which natural phenomenon will happen when lava,
rocks, gases, and other hot materials from the interior of
the earth are thrown out of the volcano?
A. tsunami
B. landslides
C. earthquake D. volcanic eruption
5. Which causes the rocks to melt in the interior of the
Earth?
A. high pressure
C. very high temperature
surface
B. gravity of the Earth
D. forces beneath the
6. How can a volcanic eruption bring positive effect?
A. It emits different gases to the atmosphere.
D. because of gases inside the Earth
10. What builds up inside the Earth as a result of high
temperature?
A. lava B. ashes
pressure
C. gases
D.
11. Which materials make up the liquid part of the
mantle?
A. liquid gases B. molten rocks
C. molten plastics
D. liquid iron and nickel
12. Why are rocks in the lower mantle molten?
A. because of gravity
B. because of too much air
C. because of high temperature
D. because water is mixed with it
13. Which causes the sudden breaking of rocks in faults
or cracks in the
crust?
A. very heavy rains B. strong thunderstorm
C. overpopulation in an area
D. movement of molten rocks
14. Which natural phenomenon occurs when rocks break
in faults or cracks
in the crust due to movement of molten material?
A. tornado
B. landslide
C. earthquake D. volcanic eruption
15. What causes seismic waves?
A. overpopulation B. typhoon in our country
C. movement of rocks underground
16. Which of the following is a benefit of volcanic
eruptions?
A. attracts tourists B. prevents flooding