RJDAMA CHRISTIAN ACADEMY INC.

Centro, Sta. Ana, Cagayan

SCIENCE 6
SY 2024-2025
FOURTH PERIODICAL EXAMINATION

NAME:_________________________________ DATE:__________
I. Choose the letter of the correct answer. Copy the letter of the correct answer on the space provided
before each number.

___1. Which of the following is the outermost layer of the Earth?

A. Mantle B. Outer Core C. Crust
___2. Which layer is located just below the Earth's crust?
A. Outer Core B. Inner Core C. Mantle
___3. What is the movement of tectonic plates responsible for?
A. The seasons B. Earthquakes and volcanoes C. The weather
___4. Which of the following is formed when two tectonic plates collide?
A. Mountains B. Oceans C. Clouds
___5. The Philippines frequently has earthquakes and volcanic eruptions because _____________.
A. It is composed of more than 7,000 islands.
B. It is found in equator.
C. It is located along the Pacific Ring of Fire.
___6. What should you do before an earthquake to prepare your home?
A. Close all windows
B. Secure heavy furniture and appliances
C. Stay outside
___7. What should you do if you are outside when an Earthquakes strikes?
A. Enter a building immediately
B. Move away from buildings, trees, and power lines
C. Stay under a tree
___8. What is the best way to protect yourself during an earthquake while inside a car?
A. Stop the car in an open area and stay inside.
B. Get out of the car and run
C. Drive faster to avoid the shaking
___9. What should you have in your emergency kit before an earthquake?
A. Water, food, first aid supplies, flashlight
B. Flashlight only
C. Cosmetics items
___10. After an earthquake, what is the first thing you should check for?
A. Damage to your car
B. Injuries to yourself and others
C. Social media followers
___11. If you smell gas after an earthquake, what should you do?
A. Open all windows to air out the house
B. Turn on the gas stove to check if it's leaking
C. Evacuate the building immediately and call emergency services
___12. You live in an area that frequently experiences earthquakes. Which action should you take to prepare
your home to reduce the risk of injury during an earthquake?
A. Move all heavy furniture to the center of the room
B. Secure heavy furniture and appliances to the walls
C. Remove all furniture from your home
___13. During an earthquake, you are at school. What is the safest action you should take to protect yourself?
A. Run outside as quickly as possible
B. Stand under a doorway for protection
C. Drop to the floor, take cover under a desk, and hold on until the shaking stops
___14. Which of the following is the main season in the Philippines?
A. Winter B. Autumn C. Rainy Season
___15. What is the weather like during the dry season in the Philippines?
A. Cool and rainy B. Warm and sunny C. Cold and windy
___16. How many seasons does the Philippines typically experience in a year?
A. One B. Two C. Three
___17. What is the weather like in the Philippines during the "amihan" season?
A. Hot and dry B. Cool and dry C. Hot and humid
___18. A farmer in the Philippines wants to plant crops during the rainy season. Which crops should the
farmer most likely plant, considering the weather conditions?
A. Rice, corn, and vegetables that require a lot of water
B. Wheat and barley, which thrive in dry conditions
C. Coconut and palm trees, which need dry weather
___19. If you are traveling to the Philippines during the dry season (March to May), which of the following
should you do to stay safe and comfortable?
A. Carry an umbrella to protect yourself from the cold.
B. Drink plenty of water to stay hydrated and wear sunscreen.
C. Wear warm clothes, as it will be very cold.
___20. Which of the following activities is MOST likely to be affected by the rainy season in the Philippines?
A. Swimming in the beach B. Planting rice C. Celebrating Christmas
___21. During which season is it most common to experience typhoons in the Philippines?
A. Dry season B. Summer C. Rainy season
___22. What is a common activity that people in the Philippines do during the dry season?
A. Planting rice B. Going to the beach C. Taking shelter from the rain
___23. What is the term used to describe a tropical cyclone that occurs in the Philippines?
A.Tornado B. Hurricane C. Typhoon
___24. Which of the following is a characteristic of the dry season in the Philippines?
A. Continuous rainfall
B. Cooler temperatures and clear skies
C. Hot and sunny weather with little to no rain
___25. If you wanted to protect your house from the effects of a typhoon during the wet season, which
preparation would be most important?
A. Ensure your roof and windows are reinforced to withstand strong winds and rain
B. Install air conditioning to cope with the heat
C. Build a large rainwater collection tank to store water
___26. What is the term used to describe the Earth spinning on its axis?
A. Rotation B. Revolution C. Gravity
___27. Which of the following causes day and night on Earth?
A. Revolution of Earth B. Rotation of Earth C. The Moon's orbit
___28. What causes the change in seasons on Earth?
A. Earth’s rotation
B. Earth’s revolution and tilt of its axis
C. Earth’s orbit around the Moon
___29. Which of the following is an example of Earth's rotation?
A. The change of seasons.
B. The movement of the Earth around the Sun.
C. The day-night cycle.
___30. If the Earth were to suddenly stop rotating, which of the following would likely happen?
A. We would have a 24-hour day and night.
B. The Sun would not rise or set.
C. The day and night would last for many months.
___31. Imagine that Earth’s revolution around the Sun took only 100 days instead of 365 days. How would
the length of the seasons change?
A. The seasons would stay the same length.
B. The seasons would be much shorter.
C. The seasons would last for many years.
___32. Which statement best explains the difference between rotation and revolution?
A. Rotation is the Earth’s movement around the Sun, and revolution is the spinning of Earth on its
axis.
B. Rotation is the spinning of Earth on its axis, and revolution is the Earth’s movement around the
Sun.
C. Rotation and revolution are the same thing.
___33. If Earth’s rotation were to stop suddenly, what would happen?
A. The Earth would continue to orbit the Sun.
B. The length of a day would be reduced to zero.
C. Earth would be pulled into the Sun.
___34. How long does it take for Earth to complete one full rotation?
A. 365 days B. 24 hours C. 30 days
___35. What does the Earth revolve around?
A. The Moon B. The Sun C. The Stars
___36. What is the effect of Earth’s rotation on the oceans?
A. Tides B. Volcanoes C. Earthquakes
___37. Which of the following is TRUE about both rotation and revolution?
A. Both are responsible for causing the phases of the Moon.
B. Both involve movement around an axis or center.
C. Both happen in 24 hours.
___38. What is the center of our solar system?
A. The Sun B. The Moon C. The Star
___39. Which planet is closest to the Sun?
A. Venus B. Mercury C. Mars
___40. What is the name of the Earth's natural satellite?
A. Moon B. Mars C. Sun
___41. Which planet has rings around it?
A. Mars B. Saturn C. Venus
___42. If you were to visit Venus, what precautions would you need to take based on the planet’s
atmosphere?
A. You would need a special suit to protect you from the cold temperatures.
B. You would need to wear a spacesuit to protect yourself from extreme heat and toxic gases.
C. You would need a suit that filters out sunlight.
___43. Imagine you're a scientist studying Venus. If you want to learn about the planet’s surface, which of
the following would be the best method?
A. Using a telescope from Earth.
B. Sending a probe with cameras and sensors to Venus' surface.
C. Studying Venus' atmosphere only.
___44. If the Sun were to suddenly stop providing energy to Earth, what would be the immediate effect on
plants?
A. Plants would grow faster because they would need less sunlight.
B. Plants would stop photosynthesis and eventually die.
C. Plants would start to produce their own light.
___45. If the Earth had no Sun, what would be the effect on Earth’s weather patterns?
A. Weather patterns would remain the same, but there would be no seasons.
B. Weather patterns would disappear, and the Earth would be cold and still.
C. The Earth would have extreme weather events, but no life could exist.
___46. Why is the Sun important for life on Earth?
A. It gives us light and warmth.
B. It makes the Earth spin.
C. It provides water to the Earth.
___47. How does the Sun affect the planets in the Solar System?
A. The Sun gives the planets energy and gravity to stay in orbit.
B. The Sun stops the planets from moving.
C. The Sun keeps the planets cold.
___48. What role do asteroids play in the Solar System?
A. They help create new planets.
B. They are small objects that orbit the Sun and can sometimes collide with planets.
C. They provide heat to the Solar System.
___49. Why does the Moon appear to change shape throughout the month?
A. The Moon is spinning in different directions.
B. The Moon is moving closer and farther from Earth.
C. We see different amounts of the Moon's surface as it orbits Earth.
___50. If humans were to establish a colony on Mars, what would be one of the first challenges they would
face?
A. Mars has a strong magnetic field that protects its surface.
B. Mars has a very thick atmosphere to support breathing.
C. Mars lacks liquid water, making it difficult to grow food.

Prepared by: Checked and noted by:

Princess Dianne V. Cadang Queen Elaine T. Agresor

Subject Teacher Academic School Head
 RJDAMA CHRISTIAN ACADEMY INC.
Centro, Sta. Ana, Cagayan
SCIENCE 4
SY 2024-2025
FOURTH PERIODICAL EXAMINATION

NAME:_________________________________ DATE:__________
I. Choose the letter of the correct answer. Copy the letter of the correct answer on the space provided
before each number.

___1. What are the three main types of soil?

A. Clay, Sand, and Loam B. Mud, Water, and Sand C. Rock, Soil, and Air
___2. Which type of soil holds water the best?
A. Sandy soil B. Clay soil C. Loamy soil
___3. Which type of soil is best for growing most plants?
A. Clay soil B. Sandy soil C. Loamy soil
___4. Which type of soil is best for making bricks or pottery?
A. Sandy soil B. Clay soil C. Loamy soil
___5. What is a benefit of loamy soil for gardening?
A. It has good drainage and also holds moisture well.
B. It holds too much water, which can drown plants.
C. It is very dry and doesn’t need much water.
___6. What is the main difference between clay soil and sandy soil?
A. Clay soil is rough, and sandy soil is smooth.
B. Sandy soil holds water better than clay soil.
C. Clay soil is sticky and holds water well, while sandy soil drains quickly.
___7. What can happen if soil doesn’t drain well enough?
A. Plants may get too much water and start to rot.
B. Plants will grow faster.
C. Soil will turn into sand.
___8. Which type of soil would you find in a forest, where it is rich in nutrients from decaying leaves and
plants?
A. Sandy soil B. Loamy Soil C. Clay soil
___9. What type of soil is most commonly found in desserts?
A. Sandy soil B. Clay soil C. Loamy soil
___10. How does soil texture affect plant roots?
A. Soil texture doesn’t affect plant roots.
B. Soil texture determines how well water and nutrients move through the soil to reach the roots.
C. Soil texture only affects the color of the plants.
___11. What do animals drink to stay healthy?
A. Milk B. Juice C. Water
___12. Where do plants get water from in the soil?
A. From the air B. From the ground C. From the sun
___13. What happens when animals drink enough water?
A. They grow bigger
B. They stay healthy and feel strong
C. They sleep more
___14. Which of these animals need water to live?
A. Fish B. All animals C. Only Cats and Dogs
___15. Which of the following is a sign that a plant needs more water?
A. The leaves are green and healthy
B. The leaves are yellow or wilted.
C. The flowers are blooming.
___16. What is the role of water in the bodies of animals?
A. To help animals sleep.
B. To keep body temperature regulated and to support vital functions.
C. To help animals grow bigger muscles.
___17. Which of these is an example of precipitation?
A. Water rising from the ocean
B. Rain falling from the sky
C. Water droplets turning into clouds
___18. Which of the following true about the water cycle?
A. Water constantly gets used up and does not return to Earth.
B. Water is always moving through the cycle, from the ground to the sky and back again.
C. Water only moves from the ground to the sky.
___19. How does the water cycle help plants?
A. It makes clouds
B. It brings water to the soil, helping plants grow.
C. It makes rainbows
___20. Why do some animals need water than others?
A. Because they are bigger or live in warmer place.
B. Because they eat more food.
C. Because they sleep longer.
___21. What is the primary instrument used to measure air temperature?
A. Barometer B. Thermometer C. Anemometer
___22. Which of the following is used to measure air pressure?
A. Thermometer B. Barometer C. Rain gauge
___23. You are a farmer planning to harvest your crops. The forecast predicts a rise in humidity and a 90%
chance of heavy rainfall. What is the best course of action to protect your crops?
A. Harvest the crops early to avoid getting caught in the rain
B. Wait for the rain to pass before harvesting the crops
C. Wait for temperatures to rise before harvesting the crops
___24. You’re a scientist monitoring a region where the air pressure is extremely high, temperatures are stable,
and there is little to no cloud cover. What type of weather conditions should you expect over the next
few days in this area?
A. A storm with heavy rain
B. Unstable weather with sudden changes in temperature
C. Clear skies and calm weather
___25. You’re creating a game for your friends to help them learn about clouds. How can you make the game
fun while teaching them about different types of clouds?
A. Create a matching game where they match pictures of clouds with their names and
descriptions, or have them guess the type of cloud based on its appearance.
B. Make them watch a video about clouds.
C. Ask them to write a report about clouds.
___26. You need to measure how much rain has fallen during a storm. Which weather instrument would you
use?
A. Thermometer B. Rain gauge C. Barometer
___27. During a school field trip, you want to check the direction of the wind. Which instrument will help you
find out?
A. Barometer B. Wind vane C. Thermometer
___28. During a school project, you are asked to measure the wind speed and direction at the same time. Which
two instruments would you use?
A. Anemometer and rain gauge
B. Thermometer and barometer
C. Anemometer and wind vane
___29. After a snowfall, you need to measure how much snow has accumulated in the schoolyard. Which tool
will help you record the depth of the snow?
A. Wind vane B. Snow gauge C. Hygrometer
___30. You are using a wind vane to measure the wind direction during your outdoor recess. Where should you
place the wind vane to get the most accurate reading?
A. In a shaded area under a tree
B. On top of a tall building
C. In an open area with no obstacles like buildings or trees
___31. What is the main source of light and heat for the Earth?
A. The Moon B. The Sun C. The Stars
___32. What is the innermost layer of the Sun?
A. Core B. Photosphere C. Corona
___33. You are outside on a sunny day and want to stay cool. What can you do to protect yourself from the
sun’s heat?
A. Wear sunscreen and a hat.
B. Stand in the shade or use an umbrella.
C. All of the above
___34. Why is the sun important for life on Earth?
A. It provides energy for photosynthesis.
B. It helps keep the Earth cool.
C. It controls the speed of the Earth's rotation.
___35. You are observing the weather and notice that it’s cloudy and cool. What could be the reason for this?
A. The sun is shining brightly and warming the Earth.
B. The sun's rays are blocked by clouds, preventing the Earth from warming.
C. The sun is moving towards the Earth.
___36. What is the effect of the sun's energy on Earth?
A. It causes day and night cycles.
B. It heats the Earth’s surface and atmosphere.
C. All of the above
___37. How does the sun help in the water cycle on Earth?
A. By pulling water towards the Earth.
B. By providing light and heat that causes water to evaporate.
C. By controlling rainfall.
___38. What do we call the dark spots on the sun?
A. Solar winds B. Sunspots C. Solar Flare
___39. Which of the following is NOT part of the sun?
A. Photosphere B. Core C. Moon
___40. You are growing plants in your garden. How can you make sure your plants are getting enough sunlight?
A. Plant them in the shade.
B. Plant them in a sunny area.
C. Water them more often.

Prepared by: Checked and noted by:

Princess Dianne V. Cadang Queen Elaine T. Agresor

Subject Teacher Academic School Head
 RJDAMA CHRISTIAN ACADEMY INC.
Centro, Sta. Ana, Cagayan
SCIENCE 5
SY 2024-2025
FOURTH PERIODICAL EXAMINATION

NAME:_________________________________ DATE:__________
I. Choose the letter of the correct answer. Copy the letter of the correct answer on the space provided
before each number.

___1. It is the breaking down of rocks into fragments.

A. Weathering B. Flooding C. Erosion
___2. A type of weathering that involves a change in the composition of rock.
A. Mechanical B. Chemical C. Both
___3. What will happen to a rock when it is exposed to higher temperatures?
A. Contracts B. Evaporates C. Expands
___4. This refers to the scaling off or peeling off successive shells from the surface of rocks.
A. Exfoliation B. Quarrying C. Reforestation
___5. It is a method of planting a series of different crops in the same area in sequential seasons.
A. Reforestation B. Crop rotation C. Rip-rapping
___6. It is a method of planting rows of trees or bushes to prevent soil erosion.
A. Terraces B. Crop rotation C. Windbreak
___7. What do you call the process by which humans extract stones from mountains for construction purposes?
A. Quarrying B. Weathering C. Digging
___8. Which of the following is NOT a factor that causes chemical weathering?
A. Water B. Open-field C. Oxygen
___9. Which of the following shows that animals cause soil erosion?
A. Construction workers are building a housing project.
B. The root of plants is growing.
C. A hen is digging the soil.
___10. How can trees prevent soil erosion?
A. The roots hold the soil firmly together.
B. The trees block the way of running water.
C. The roots absorb the water at once.
___11. It is a weather disturbance characterized by a large mass of wind and rain.
A. Hurricanes B. Tropical cyclone C. Thunder
___12. Wind speed is measured using an _______.
A. Thermometer B. Tetrameter C. Anemometer
___13. What does the acronym PAGASA mean?
A. Philippine Atmospheric, Geophysical and Astronomical Services Administration
B. Philippine Atmosphere, Geologist and Astronomy Services Administration
C. Pilipinas Astrology, Geophysical and Astronomical Services Administration
___14. It refers to the disruption of the stable condition of the atmosphere.
A. Flash floods B. Weather disturbance C. Storm surge
___15. A convection current is the ____ of the warm air and the sinking of cold air.
A. Decreasing B. Increasing C. Rising
___16. The government agency that warns the people of an approaching typhoon.
A. PAGASA B. DEPED C. DENR
___17. What can we observe during a typhoon?
A.The sun becomes visible, and the sky becomes clearer.
B. Heavy rains and strong winds.
C. All of the above
___18. Why do pilots and captains need to know the weather? It will help them decide _________.
A. How much fare to ask. C. Whether to travel or not
B. What color code to use.
___19. The strength of the tropical cyclone depends on the _________.
A. Maximum speed of wind near the center. C. None of the above.
 B. Minimum speed of winds near the center.
___20. Which of the following things is NOT necessary to keep before the typhoon season?
A. Flashlight and extra batteries C. First aid kits and essential medicine
B. Chocolates and candies
___21. These are the different ways the Moon looks from the Earth over the month.
A. Faces of moon B. Moon faces C. Phases of the Moon
___22. Each complete cycle of phases of the moon is called ________.
A. Lunation B. Lamination C. None of the above
___23. What do you call a round bright moon shaped like an O?
A. Half Moon B. Full Moon C. New Moon
___24. What do you call if the Moon is less than half illuminated?
A. Waxing B. Gibbous C. Crescent
___25. The Moon has traveled a quarter of its orbit around Earth. This phases of Moon is called ____?
A. First quarter B. Last quarter C. New Moon
___26. How many days does a Moon take to complete a rotation on its axis and revolution around Earth?
A. 365 days B. 29 1/2 days C. 100 days
___27. When do you see a new moon?
A.When it is half-rounded
B. When it is round and bright
C. When the dark side of the Moon faces Earth
___28. Why do you see the same side of the moon?
A. The moon reflects light from the sun. C. None of the above
B. The moon is Earth’s satellite.
___29. How long does it take the moon to complete a cyclical pattern of its shapes?
A. a year B. a month C. a week
___30. Why does the Moon seem to have different shapes?
A. Because the Moon is smaller than Earth.
B. Because the Moon has a lesser pull of gravity.
C. Because the Moon takes 29 1/2 days to rotate on its axis and to revolve around Earth.
___31. What do you call the patterns of stars that form an imaginary outline as seen in the sky?
A. Constellations B. Asterism C. Zodiac sign
___32. A group of stars that forms a pattern in the sky but is smaller than a constellation is called _____.
A. Constellations B. Asterism C. Zodiac sign
___33. Astrologers use 12 of the 13 constellations to make astrological predictions.
A. Constellations B. Asterism C. Zodiac sign
___34. It is the study of the movements and relative positions of celestial bodies.
A. Astrology B. Astrologer C. Scientist
___35. An ____ is a person who uses astrology to predict other people’s future.
A. Astrology B. Astrologer C. Scientist
___36. It is a huge sphere of very hot, glowing gases.
A. Moon B. Asteroids C. Star
___37. Which statement about constellations is true?
A. Constellations are gods and goddesses that we need to praise.
B. Constellations are groups of stars that appear as distinct patterns in the sky.
C. None of the above.
___38. What is a Zodiac sign?
A. It is a star pattern influencing the lives of people. C. All of the above.
B. It is used by fortune tellers to tell horoscope.
___39. The Big Dipper is an example of an asterism in the night sky. Why is it famous?
A. It is found in Ursa Minor C. None of the above
B. It is always near the North Star
___40. Why is Polaris important for locating places?
A. The stars seem to be fixed in the same position C. All of the above
B. It is located at the tail of Ursa Minor.

Prepared by: Checked and noted by:

Princess Dianne V. Cadang Queen Elaine T. Agresor

Subject Teacher Academic School Head
 RJDAMA CHRISTIAN ACADEMY INC.
Centro, Sta. Ana, Cagayan
SCIENCE 7
SY 2024-2025
FOURTH PERIODICAL EXAMINATION

NAME:_________________________________ DATE:__________
I. Choose the letter of the correct answer. Copy the letter of the correct answer on the space provided
before each number.
___1. What is the outermost layer of the Earth called?
A. Mantle B. Core C. Crust
___2. Which layer of the Earth is responsible for the movement of tectonic plates?
A. Outer core B. Mantle C. Crust
___3. What causes an earthquake?
A. Sudden movement of tectonic plates along fault lines
B. The Earth 's magnetic field
C. The Movement of the moon
___4. In an area where the ground is stretching, causing the crust to pull apart, which type of fault would you
expect to find?
A. Strike-slip fault B. Reverse fault C. Normal fault
___5. Imagine you are in an area where you can see two pieces of land on either side of a fault line, with one
side sliding horizontally past the other. What type of fault are you likely observing?
A. Reverse fault B. Normal fault C. Strike-slip fault
___6. After an earthquake, you notice that the ground on one side of the fault is higher than the other side. This
suggests which type of fault?
A. Normal fault B. Reverse fault C. Strike-slip fault
___7. The San Andreas Fault in California is an example of which type of fault?
A. Normal fault B. Reverse fault C. Strike-slip fault
___8. If you were in Iceland, which type of fault would you most likely find near the mid-Atlantic ridge?
A. Normal fault B. Reverse fault C. Strike-slip fault
___9. You are on a coastal vacation when an earthquake occurs, and you hear a warning about an approaching
tsunami. What should you do?
A. Stay at the beach and wait for the tsunami.
B. Immediately move to higher ground and away from the water.
C. Go back to your hotel and remain indoors.
___10. A few days after a large earthquake, you notice that the ground is still shaking and houses are shifting in
position. What is most likely happening?
A. Aftershocks
B. A second major earthquake
C. A tsunami continuing to affect the area
___11. What should you include in an emergency kit to prepare for an earthquake?
A. Only food and water
B. Flashlights, batteries, a first aid kit, and a portable phone charger
C. A television and extra clothes
___12. The Philippines frequently has earthquakes and volcanic eruptions because _____________.
A. It is composed of more than 7,000 islands.
B. It is found in equator.
C. It is located along the Pacific Ring of Fire.
___13. What is the primary cause of an earthquake?
A. Volcanic eruptions
B. Tectonic plate movements
C. Meteor impacts
___14. Which of the following human activities can increase the damage caused by earthquakes?
A. Building with earthquake-resistant designs
B. Mining and drilling in tectonically unstable areas
C. Planting trees on fault lines
___15. The Richter scale is used to measure which aspect of an earthquake?
A. The number of casualties
B. The speed of seismic waves
C. The magnitude or size of the earthquake
___16. After an earthquake, which of the following is most likely to occur in the affected area?
A. Soil erosion
B. Improved air quality
C. Increased vegetation growth
___17. Which of the following actions should be taken immediately after an earthquake to reduce the risk of
secondary hazards?
A. Return home as quickly as possible to assess damage
B. Check for gas leaks and electrical hazards to prevent fires
C. Stand near buildings to observe the effects of aftershocks
___18. What is the most important step to take before an earthquake to ensure personal safety?
A. Learning the location of emergency exits and evacuation routes
B. Stockpiling food and water for one year
C. Securing heavy furniture and objects to walls and shelves
___19. How can communities prepare for an earthquake before it occurs?
A. By building tall skyscrapers with no reinforcement
B. By constructing buildings with earthquake-resistant materials and designs
C. By relying on other countries for earthquake relief efforts
___20. Before an earthquake, which of the following items should be included in an emergency kit?
A. A large supply of firewood
B. Flashlight, first aid supplies, and non-perishable food
C. Extra furniture for comfort
___21. If you are indoors when an earthquake strikes, what should you do?
A. Run outside to avoid being trapped
B. Stand near a window to observe the shaking
C. Take cover under sturdy furniture and protect your head and neck
___22. Which of these is NOT a recommended action during the aftershock of an earthquake?
A. Drop, cover, and hold on
B. Stay away from windows and doorways
C. Evacuate the building immediately
___23. What is the "Drop, Cover, and Hold On" method designed to protect against?
A. Falling objects and debris during an earthquake
B. Building collapse after an earthquake
C. Tsunami waves after an earthquake
___24. Why is it important to practice earthquake drills regularly?
A. To familiarize everyone with the emergency procedures
B. To make sure your house is earthquake-proof
C. To encourage people to stay calm after the earthquake
___25. When creating an emergency plan for your family, which of the following is important to include?
A. A designated meeting location outside the home
B. A list of family members' favorite foods
C. A list of all vacation destinations
___26. What is the layer of the atmosphere closest to Earth's surface?
A. Stratosphere B. Mesosphere C. Troposphere
___27. In which layer of the atmosphere do most meteoroids burn up upon entry?
A. Thermosphere B. Mesosphere C. Exosphere
___28. Which layer of the atmosphere is closest to space and has very few particles?
A. Thermosphere B. Exosphere C. Stratosphere
___29. You are a pilot flying at 15 kilometers above Earth's surface. In which layer of the atmosphere are you
currently flying?
A. Stratosphere B. Troposphere C. Mesosphere
___30. A weather satellite orbits at an altitude of about 700 kilometers above the Earth. In which layer of the
atmosphere is this satellite located?
A. Stratosphere B. Mesosphere C. Exosphere
___31. You are a meteorologist tracking an incoming storm. The storm is expected to form in the layer of the
atmosphere where most weather phenomena occur. Which layer is this?
A. Mesosphere B. Stratosphere C. Troposphere
___32. If you are a scientist studying the effects of ultraviolet radiation on Earth, which layer of the atmosphere
should you focus on to understand how harmful rays are filtered?
A. Mesosphere B. Stratosphere C. Exosphere
___33. You are a scientist studying atmospheric layers to understand the conditions for auroras. In which layer
do auroras typically occur?
 A. Mesosphere B. Thermosphere C. Troposphere
___34. A meteorologist is analyzing a weather balloon's data at an altitude of 30 km. In which layer of the
atmosphere is the balloon currently located?
A. Stratosphere B. Mesosphere C. Troposphere
___35. How long does it take for the Earth to complete one revolution around the Sun?
A. 24 hours B. 30 days C. 365 days
___36. What causes day and night on Earth?
A. The Earth's revolution around the Sun
B. The Earth's rotation on its axis
C. The Moon’s orbit around the Earth
___37. How long does it take the Earth to complete one full rotation?
A. 12 hours B. 24 hours C. 365 days
___38. What is the Earth's revolution around the Sun responsible for?
A. The change from day to night
B. The seasons of the year
C. The length of a day
___39. Which of the following is the Earth's axis?
A. The imaginary line around which the Earth rotates
B. The path the Earth takes around the Sun
C. The Earth's center
___40. What is the main difference between the Earth's rotation and its revolution?
A. Rotation refers to the Earth's movement around the Sun, while revolution refers to the Earth's spin on
its axis.
B. Rotation refers to the Earth's spin on its axis, while revolution refers to the Earth's movement around
the Sun.
C. Rotation occurs once every 365 days, and revolution occurs every 24 hours.

Prepared by: Checked and noted by:

Princess Dianne V. Cadang Queen Elaine T. Agresor

Subject Teacher Academic School Head
 RJDAMA CHRISTIAN ACADEMY INC.
Centro, Sta. Ana, Cagayan
SCIENCE 8
SY 2024-2025
FOURTH PERIODICAL EXAMINATION

NAME:_________________________________ DATE:__________
I. Choose the letter of the correct answer. Copy the letter of the correct answer on the space provided
before each number.

___1. What is the main function of the digestive system?

A. To circulate oxygen throughout the body
B. To break down food into nutrients that the body can use
C. To transport waste materials to the kidneys
___2. What connects the mouth to the stomach?
A. Large intestine B. Rectum C. Esophagus
___3. Where does digestion begin?
A. Stomach B. Mouth C. Small intestine
___4. What is the function of the teeth in the digestive system?
A. To produce saliva
B. To break down food into smaller pieces
C. To absorb nutrients
___5. Which organ breaks down food with stomach acid and digestive enzymes?
A. Small intestine B. Stomach C. Pancreas
___6. If you eat a fatty meal, which part of the digestive system will release bile to help break down the fat?
A. Small intestine B. Liver C. Gallbladder
___7. If a person has persistent diarrhea, which part of the digestive system may not be absorbing water
properly?
A. Stomach B. Small intestine C. Large intestine
___8. If a person has a chronic cough, difficulty swallowing, and food that often gets stuck in the chest, they
may be experiencing symptoms of which digestive issue?
A. Acid reflux
B. Gallstones
C. Irritable Bowel Syndrome (IBS)
___9. A person has persistent pain in the stomach area, particularly when they eat or drink. Their doctor
suspects the presence of an ulcer. What might this person have?
A. Irritable Bowel Syndrome (IBS) B. Peptic ulcer C. Crohn’s disease
___10. A person complains of frequent heartburn, a burning sensation in the chest after eating, and sometimes
regurgitation of food. What condition might they have?
A. Irritable Bowel Syndrome (IBS)
B. Gallstones
C. Gastroesophageal Reflux Disease (GERD)
___11. What is the purpose of meiosis?
A. To produce genetically identical cells
B. To produce gametes (sperm and egg cells)
C. To produce somatic cells for growth
___12. What is the primary purpose of mitosis?
A. To produce gametes
B. To divide a single cell into two identical daughter cells
C. To increase genetic diversity
___13. During which phase of mitosis do the chromosomes align at the cell's equator?
A. Prophase B. Anaphase C. Metaphase
___14. After a person’s injury, skin cells begin to divide to heal the wound. Which type of cell division is
responsible for this?
A. Mitosis B. Meiosis C. Binary fission
___15. During mitosis, a cell’s DNA is replicated. Which phase of mitosis involves the splitting of the parent
cell into two identical daughter cells?
A. Prophase B. Anaphase C. Cytokinesis
___16. How many rounds of division occur in meiosis?
 A. One B. Two C. Three
___17. Which of the following events occurs during telophase of mitosis?
A. Chromosomes condense
B. Chromosomes align in the center of the cell
C. The nuclear membrane reforms
___18. What is the final result of mitosis in terms of chromosome number?
A. The daughter cells have half the chromosome number of the parent cell
B. The daughter cells have the same chromosome number as the parent cell
C. The daughter cells have double the chromosome number of the parent cell
___19. What is the main purpose of mitosis in multicellular organisms?
A. To produce gametes
B. To repair and grow cells
C. To create genetic diversity
___20. What is the first stage of mitosis called?
A. Prophase B. Metaphase C. Anaphase
___21. What is the structure of a gene made up of?
A. Proteins
B. RNA
C. DNA (Deoxyribonucleic Acid)
___22. What type of inheritance involves one gene controlling a trait?
A. Polygenic inheritance
B. Mendelian inheritance
C. Epigenetic inheritance
___23. What is inheritance in biology?
A. The process by which an organism creates new cells
B. The process by which offspring receive traits from their parents
C. The change in species over time
___24. What is the term for the physical appearance or traits of an organism?
A. Genotype B. Phenotype C. Allele
___25. What is the name of the process by which traits are passed from parents to offspring?
A. Mitosis
B. Meiosis
C. Genetic inheritance
___26. What type of inheritance pattern involves one allele completely masking the effect of another allele?
A. Incomplete dominance
B. Codominance
C. Dominant-recessive inheritance
___27. Which of the following is true about recessive alleles?
A. They are expressed only when the organism has two copies of the recessive allele.
B. They are always expressed in the phenotype.
C. They are always dominant over other alleles.
___28. If a pea plant with genotype Tt (tall) is crossed with a plant with genotype tt (short), what are the
possible genotypes of their offspring?
A. TT B. tt C. Tt and tt
___29. In humans, which chromosome pair determines the sex of the individual?
A. Chromosome 1 B. Chromosome 23 C. Chromosome 12
___30. What is the difference between a genotype and a phenotype?
A. Genotype refers to the physical appearance, while phenotype refers to the genetic makeup.
B. Genotype refers to the genetic makeup, while phenotype refers to the physical appearance.
C. There is no difference.
___31. What is the primary source of energy for almost all ecosystems?
A. Soil nutrients B. Sunlight C. Water
___32. In an ecosystem, which organisms are considered primary producers?
A. Herbivores B. Carnivores C. Plants and algae
___33. What role do decomposers play in the transfer of energy through trophic levels?
A. They are at the top of the food chain.
B. They break down dead organisms, recycling nutrients back into the ecosystem.
C. They consume primary producers directly.
___34. A researcher observes that in a particular ecosystem, an animal primarily feeds on leaves and grass but
occasionally eats small mammals when available. What is the most accurate classification for
this animal?
A. Herbivore B. Carnivore C. Omnivore
___35. Which of the following animals is an example of a carnivore?
A. Cow B. Tiger C. Rabbit
___36. Which of the following animals is an herbivore?
A. Crocodile B. Horse C. Lion
___37. Which of the following would you expect a carnivore to have?
A. Sharp teeth for tearing meat
B. Flat teeth for grinding plants
C. A long tongue for collecting nectar
___38. During a trip to a national park, you observe an animal eating only fruits and vegetables. What type of
animal is it most likely?
A. Carnivore B. Omnivore C. Herbivore
___39. In a forest ecosystem, the removal of certain species of trees has led to a decrease in animal populations.
What is most likely the cause of this problem?
A. The forest no longer has enough sunlight
B. There is less food and shelter for animals
C. The soil has become more fertile
___40. You are part of a team tasked with maintaining a local park’s ecosystem. The park is home to various
plants and animals. Which of the following actions will best protect the ecosystem?
A. Removing all plants to make the park more accessible
B. Planting native species and controlling invasive plants
C. Increasing human activity to boost tourism

Prepared by: Checked and noted by:

Princess Dianne V. Cadang Queen Elaine T. Agresor

Subject Teacher Academic School Head