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WorksheetsGrade 8 Tutees
Total questions: 71
Worksheet time: 12mins
What type of volcano is small, only about 91 meters tall, not rising more than 366 meters that can be formed over short periods of few months or years?
cinder cone volcanoes
shield volcanoes
stratovolcanoes
dome volcanoes
Volcanoes are mountains, hills, or any vent opening on the earth's crust. Which of the following is not being expelled by a volcano?
lava
magma
gases and vapors
fragmented materials
What volcanoes can erupt violently because of the pressure that builds inside the magma chamber containing very hot gases dissolved in the liquid rock?
cinder cone volcanoes
shield volcanoes
stratovolcanoes
dome volcanoes
Which volcano is an example of composite volcano?
Mauna Loa
Mount Pinatubo
Mt. Saint Helens
Mt. Krakatoa
What is the deepest part of the world's ocean near the volcanic coastline of the Philippines?
Pacific Ocean
Maria trench
Mariana trench
Indian Ocean
What energy comes from the heat within the Earth's interior?
wind energy
solar energy
geothermal energy
heat energy
Cinder cone volcanoes are the most familiar kind, have steep slopes, and cluster around larger volcanoes. It is also known as what?
tephra volcanoes
scoria volcanoes
dormant volcanoes
shield volcanoes
An instrument used to measure the changes in the shape of a volcano is called what?
laser beams
tiltmeter
Richter scale
seismometer
Which is the correct statement among the following about the thickness of Earth’s crust?
the thickness of the Earth's crust ranges from 0 to 50 kilometers
the thickness of the Earth's crust ranges from 5 to 60 kilometers
the thickness of the Earth's crust ranges from 5 to 50 kilometers
the thickness of the Earth's crust ranges from 5 to 100 kilometers
What is ejected from a single vent, cools rapidly, and falls as cinders building up around the vent, forming a crater at the summit?
magma
lava
tephra
volcanic bomb
Which is factual among the following about where most volcanic eruptions occur?
most volcanic eruptions occur in oceans
most volcanic eruptions occur in the mountains
most volcanic eruptions occur at continents
most volcanic eruptions occur at plate boundaries
Which is the correct definition of lava?
a lava that has erupted
a magma that is inside the volcano
a magma that has erupted
a magma that cools down
What is the correct definition of Phivolcs?
Philippine Institute of Volcanology System
Philippine Institute of Volcano and Seismology
Philippine Institute of Volcanology and Seismology
Philippine Institution of Volcanology and Seismology
These are aimed at a certain point on the volcano, and the time it takes for the beam to travel from the sending station to that point is recorded. What are these?
laser beams
tiltmeter
Richter scale
seismometer
Which is the correct statement among the following?
Volcanology pertains to all volcanic activities and phenomena which build up surface features
Volcano pertains to all volcanic activities and phenomena which build up surface features
Volcanism pertains to all volcanic activities and phenomena which build up surface features
Volcanic pertains to all volcanic activities and phenomena which build up surface features
Which is incorrect about Mauna Loa?
it can be found in Hawaii
it is the world's strongest and one of the most active volcanoes
rises about 17,000 meters from its base to its summit
its last eruption occurred in 1984
What type of explosion shows moderate bursts of expanding gases that eject clots of incandescent lava in cyclical or nearly continuous small eruptions?
Hawaiian
Pelean
Strombolian
Plinian
Which is factual about active volcanoes?
it erupted within the last 1,000 years
it erupted within the last 10,000 years
it erupted within the last 100,000 years
it erupted within the last 10 years
Vulcanian explosions generally exhibit moderate explosions of gas laden with volcanic ash. Its name came from what island?
Vulcan island
Vulcano island
Stromboli island
Hawaiian island
Which term describes the average atmospheric conditions of a place over a long period of time?
weather
climate
latitude
prevailing winds
These are subtropical latitudes found between 30° and 35° both north and south of the equator. What are these winds?
horse latitudes
doldrums
trade winds
westerlies
The climate in the Philippines is tropical. What is the mean annual temperature of the Philippines?
18°C
23.6°C
26.6°C
26.3°C
What type of climates are characterized by moderate rainfall across the year, warm summers, and cool winters?
polar climate
continental climate
tropical climate
temperate climate
Tropical climates are found in places near or at the equator. What is the average temperature of this climate?
8°C year-round
18°C year-round
28°C year-round
38°C year-round
The climate inside the building or an airplane as compared with that of the outside is called?
microclimate
macroclimate
crypto climate
local climate
What climate is when there is no dry season with very pronounced rainfall from November up to April and wet the rest of the year?
Type I
Type II
Type III
Type IV
Who was a scientist best known for his climate classification scheme and divided the world's climates into five categories?
Valdmir Koppen
Vladmir Kopper
Vladimir Koppem
Vladimir Koppen
Polar easterlies are dry, cold winds that blow from the high-pressure areas of polar highs located between 60° and 90° latitude of the northern and southern poles. It is also known as what?
polar cells
Easterlies cell
Hadley Cell
High pressure cell
Which is not correct among the following statements?
Hotter temperature can be found at the ground level
Altitude is above sea level
Altitude is the height of building
Elevated or higher places are found to have colder temperatures
Which is the correct statement among the following?
Westerlies are winds that blow from west going east in the middle latitudes between 40° and 60°
Westerlies are winds that blow from west going east in the middle latitudes between 60° and 90°
Westerlies are winds that blow from west going east in the middle latitudes between 30° and 60°
Westerlies are winds that blow from west going east in the middle latitudes between 30° and 35°
Which is not correct among the following statements?
Places near coastal areas tend to be cooler in summer
Oceans and seas heat up and cool down faster than land
Oceans tend to have less precipitation
Oceans are warmer or hotter during winter than in other places
The word "doldrums" was a term used by sailors wherein ships tend to get stuck on windless waters; it can also mean?
ship
windless water
depression
wind
What is a seasonal shift in the direction of the prevailing winds of a region that usually causes the dry and wet seasons, especially in the tropics?
weather
climate
monsoon
typhoon
Which is the correct statement among the following?
Global warning refers to the gradual increase of the overall temperature of Earth’s atmosphere
Global warming refers to the gradual increase of greenhouse effect on Earth’s atmosphere
Greenhouse effect refers to the gradual increase of the overall temperature of Earth’s atmosphere
Climate Change refers to the gradual increase of the overall temperature of Earth’s atmosphere
The main greenhouse gases include water vapor, carbon dioxide, methane, ozone, nitrous oxide, and chlorofluorocarbon (CFC). Among these, which gas is the most abundant in the atmosphere?
chlorofluorocarbon
methane
water vapor
carbon dioxide
What tool is used to monitor, observe, report, and collect atmospheric data for preparation and warnings related to typhoons, floods, and other occurrences related to weather and climate?
weather satellite ground receiving station
weather surveillance radar
rawinsonde
none of the above
What is the natural process where in the suns energy that reaches Earth's atmosphere is being absorbed to warm the planet?
climate change
global warming
greenhouse effect
tropical cyclone
What is also known as the southwest monsoon that brings heavy rains and affects the western part of the country from July to September?
Amihan
Habagat
monsoon
typhoon
Amihan, also known as northeast monsoon, usually affects the eastern part of the country. It occurs during which months?
late October to March
from January to December
from March to October
from May to September
The warming of the coastal waters is referred to as El Niño. Niño is the Spanish word which means?
a. little boy
b. Christ child
both a and b are correct
both a and b are incorrect
What refers to the climate pattern that is characterized by the cooling of the ocean surface along the tropical west coast in South America or eastern tropical Pacific Ocean?
La Niña
El Niño
Neutral
Monsoon
Modify True or False. Write True if the underlined word/phrase is correct and supply the correct one if it is incorrect: Weather surveillance radar is a device that is used to track typhoons and cloud masses at a distance of more or less 40 kilometers.
True as stated
False; the distance should be about 400 kilometers
False; the correct device is a weather satellite
False; it is primarily used to measure atmospheric pressure
Modify True or False. Write True if the underlined word/phrase is correct and supply the correct one if it is incorrect:
Neutral phase brings warm moist air and warmer surface waters to the western Pacific and keeps the central Pacific cool.
True as stated
False; the correct phase is La Niña
False; the correct phase is El Niño
False; the description refers to monsoon winds
Modify True or False. Write True if the underlined word/phrase is correct and supply the correct one if it is incorrect:
Typhoon is a type of tropical cyclone that forms over tropical or subtropical waters. It has winds of 74 mph or more.
True as stated
False; it is Hurricane
False; wind speeds must be below 74 mph
False; typhoon refers to a non-cyclone weather pattern
Which statement is incorrect among the following?
these are the regular alternate rising and falling of the ocean's water
it results from the gravitational forces of the moon and the sun
when the highest point in the wave reaches a coast, it experiences a high tide
they are very high waves moving across oceans
Which is factual about high tides?
High tides occur 24 hours and 25 minutes apart
High tides occur 12 hours and 24 minutes apart
High tides occur 12 hours and 22 minutes apart
High tides occur 22 hours and 25 minutes apart
When the earth and moon gravitational fields are perpendicular to each other the influence of these fields become weak, causing the water to flow away from the shore causing what?
high tide
tsunami
tropical depression
low tide
Weak tides are called neap tides and occur during what phase of the moon?
full moon phase
new moon phase
quarter moon phase
half-moon phase
Which is the correct statement among the following?
the moon causes lunar tides, which are the strongest and most common
the moon causes lunar tides, which are the highest and most common
the moon causes lunar tides, which are the longest
the moon causes lunar tides, which are the strongest and least common
Which is not included among the importance of tides?
commercial fishing
weather flow
coral production
pollution control
Which among the following is not considered as disadvantage of tidal energy?
high tidal power plant construction costs
stable intensity of sea waves
limited availability of sites for construction
negative effects on marine life forms
What is produced by building dams or dikes across narrow sea openings?
hydra energy
reservoir
tidal energy
turbines
What happens when the moon passes between the sun and earth thereby concealing totally or partially view of the sun from a small part of earth?
lunar eclipse
solar eclipse
planetary eclipse
sun eclipse
Which is not an advantage of tidal energy?
They are friendly to the environment
Highly recommended alternative sources of energy
It can be created by humans
Having high energy density and low operational/maintenance costs
Typhoon is a common term used in the Philippines and Western Pacific, and it is scientifically known as what?
hurricane
tropical cyclone
tornado
tropical depression
What is the approximate wind speed of a tropical storm?
63 kph
63–117 kph
over 117 kph
over 270 kph
Which part of this illustration is the strongest part of the typhoon?
eye
eyewall
tail
rainbands
How do tides help with ship navigation?
Ships can reach the harbor easily by using the advantage of water level and currents during low tides
Ships can reach the harbor easily by using the advantage of water level and currents during full moon
Ships can reach the harbor easily by using the advantage of water level and currents during high tides
Ships can reach the harbor easily by using the advantage of water level and currents during solar eclipse
What can only occur on the full moon when earth blocks the sunlight which is normally reflected by the moon?
partial lunar eclipse
total lunar eclipse
partial solar eclipse
total solar eclipse
What is a sea of many islands or a group/chain of many islands?
Pacific Ring of Fire
archipelago
tropical island
PAGASA
PAR stands for what?
Philippine Area of Resources
Philippine Area of Responsibility
Primary Area of Responsibility
Identify/answer the following. Pick the correct answer in the box. What denotes an increase in speed and is the same direction as the motion?
Positive acceleration
Negative acceleration
Deceleration
Zero acceleration
Identify/answer the following. Pick the correct answer in the box. Negative acceleration is also known as what?
Deceleration
Positive acceleration
Zero acceleration
Average acceleration
Identify/answer the following. Pick the correct answer in the box. This symbol Δ stands for what?
Change in
Average
Acceleration
Uniform acceleration
Identify/answer the following. Pick the correct answer in the box. What occurs when the velocity is changing at uniform rate per unit time at the same direction as the velocity?
Uniform acceleration
Non-uniform acceleration
Average acceleration
Zero acceleration
Identify/answer the following. Pick the correct answer in the box. Uniform acceleration is achievable through what?
Free-falling motion
Non-uniform acceleration
Average acceleration
Zero acceleration
Identify/answer the following. Pick the correct answer in the box. What is the rate of change of velocity that does not remain constant with time?
Non-uniform acceleration
Uniform acceleration
Zero acceleration
Average acceleration
Identify/answer the following. Pick the correct answer in the box. What happens when an object's velocity changes, meaning it speeds up, slows down, or changes direction and this change is caused by an unbalanced force?
Acceleration
Zero acceleration
Average acceleration
Deceleration
Identify/answer the following. Pick the correct answer in the box. What is taken by getting the difference between the initial velocity and the final velocity and dividing it by the total elapsed time?
Average acceleration
Acceleration
Uniform acceleration
Zero acceleration
Identify/answer the following. Pick the correct answer in the box. What happens when the velocity is constant throughout the journey?
Zero acceleration
Acceleration
Average acceleration
Non-uniform acceleration
Identify/answer the following. Pick the correct answer in the box. What happens when the velocity is decreasing at the same direction as the velocity and may also decrease or increase in speed at the opposite direction?
Negative acceleration
Positive acceleration
Zero acceleration
Uniform acceleration
