The document contains a 20 question quiz about science concepts related to the earth, weather, biology and ecology. The questions cover topics like the water cycle, seasons, the moon's orbit, properties of air and water, food webs and human impacts on the environment. Learners are asked to choose the best answer from multiple choice options to demonstrate their understanding of these science concepts.

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1. Which is a group of living things?
A. Meat, mouse, cheese c. cat, flea, fish
B. Rock, oil, plant d. tree, bee, honey
2. Food rich in fiber such as vegetables and fruits are important in the diet. Without fiber, which of
the following will likely happen?
a. Digestion of food will be slow
b. Bowel movement will be difficult
c. Less food nutrients will be absorbed by the body
d. More bacteria and other microorganisms will mix with digestive juices.
3. When the air is polluted, what diseases will people usually suffer from?
a. Digestive diseases c. respiratory diseases
b. Heart diseases d. nervous diseases
4. Which two senses are the most closely related?
a. Seeing and smelling c. smelling and tasting
b. Smelling and hearing d. seeing and touching
5. Which of the following food items will help fight infection?
a. Beans and cereal c. chicken, ham and bacon
b. Bread, potato and macaroni d. citrus fruits and fresh vegetables
6. Sound travels inside the ear until it reaches the nerve endings. What is the path of sound from
the ear lobe?
a. Ear lobe -- ear canal – cochlea – ear bones – eardrum
b. Ear lobe – ear canal – ear bones –cochlea – eardrum
c. Ear lobe – ear canal – eardrum – ear bones – cochlea
d. Ear lobe – ear drum – ear canal – ear bones – cochlea
7. The picture show a growing seedling. What is wrong with the pictures?
a. There should be more and bigger leaves in the last picture.
b. There should be longer and thicker roots in the last picture.
c. The cotyledons (seed leaves) should be getting smaller.
d. The stem should be getting longer but thinner.
8. In some fishes, a baby fishes are seen to come out of the male’s mouth. Which of the following
explains this observation?
a. Fertilization happens in the male’s body.
b. The male fish changes to female fish as it matures.
c. The male has male and female reproductive organs.
d. The male keeps the fertilized eggs in its mouth until they hatch.
9. Look at this baby animal
What will it become as an adult?
a. b. c. d.
10. Here is a drawing of the human digestive system. The different parts are marked with numbers.
In which part or parts does digested food move into the bloodstream?
a. 2 only c. 1,2 and 3 only
b. 3 only d. 2,3 and 4 only

2. I
II
III IV
11. Study the drawing of the digestive system.
In which part does digestion take place?
a. I and II
b. I, II,III
c. II, III, IV
d. I, II, III, IV
12. What will their baby look like?
a. Like a cat.
b. Like a dog.
c. They won’t have any babies.
d. Like a dog and cat – half-dog, half-cat
13. Which group of animals all lay eggs?
A. Kangaroo, crocodile, duck b. chicken, turtle, snake c. cat, dog, mouse d. swan, fox, bear
14. At what stages in its life cycle is a butterfly most active?
a. Egg and larva b. pupa and adult c. larva and adult d. adult and eggs
15. When an animal shivers, it is probably
a. Sad b. cold c. happy d. excited
16. Which of these groups is made up of insects only?
a. Bee, ant, caterpillar c. flea, lizard, bug
b. Dragonfly, spider, wasp d. beetle, louse, bird
17. Which is a chicken egg?
a. B. c. d.
18. The pictures show the changes in the development of a flower and fruit. Which is the correct
order?
1 2 3 4
a. 3,4,2,1 B. 2,3,4,1 c. 2,1,3,4 d. 1,4,2,3
19. The pictures show the stages in the life cycle of a butterfly.
1 2 3 4
Arrange the stages in the correct order.
a. 3,1,2,4 b. 2,3,4,1 c. 1,2,3,4 d. 4,3,2,1
20. The pictures show the stages in the life cycle of a frog.
1 2 3 4 5
Arrange each stage in the proper order that it happens
a. 3,2,5,1,4 b. 2,5,1,4,3 c. 1,2,3,4,5 d. 5,4,3,2,1
21. Which pictures shows an insect?
a. B. c. d.

3. 22. What stage in the life cycle of a butterfly is considered most destructive by farmers and why?
a. The adult, because it kills the flowers.
b. The eggs, because it spoils the taste of leaves.
c. The larva, because it eats the parts of a plant.
d. The pupa, because it destroys the beauty of the plant.
23. Bones move at the joints. Which of the following joints allows the bone to move freely in almost
all directions?
a. b. c. d.
24. Muscles make the bones move. What action of muscles causes the bones to move?
a. Pushing c. either pulling or pushing
b. pulling d. pulling, pushing and twisting
25. The drawing shows the muscles of the leg when the bends.
What happens to muscle A and muscle B to make the knee bend?
a. Muscle A and Muscle B become fat and short.
b. Muscle A and Muscle B become long and thin.
c. Muscle A becomes fat and short. Muscle B becomes long and thin.
d. Muscle A becomes long and thin. Muscle B becomes fat and short.
26. If a plant absorbs water through its roots, through what organ does it eliminate water?
a. Stem b. leaf c. flower d. fruit
27. Which of the following is an example of animal adaptation?
a. Flea - infested dog c. thin – shelled eggs
b. Grasshopper – eating birds d. sand – colored fish
28. Which of the body system work closely together to make the body move?
a. Muscular and digestive system
b. Skeletal and muscular system
c. Digestive and skeletal system
d. Circulatory and muscular system
29. Here are the different beaks of birds.
1 2 3 4
Which are best for catching food from the water?
a. 1 b. 2 c. 3 d.4
30. Which of the following phrases best describes adaptation of organisms?
a. Thick covering to conserve water.
b. Fast movement to escape its enemies.
c. Blending of colors so that it cannot be easily seen by its enemies.
d. Structure or behavior of an organism to help it survive in its environment.
31. The drawing shows a sea horse.
A sea horse is a fish, not a horse or mammal. Why?
a. It lives and swims in the deep sea.
b. It reproduces in water
c. It has gills and fins.
d. It has gills and scales.
32. Which of the following is an example of plant adaptation?
A. Healthy plants due to fertilizers c. yellowish-brown leaves due to nutrient-poor soil
B. Wilting leaves due to strong sunlight d. small, waxy leaves of a desert plant
A B

4. 33. What characteristic makes the water hyacinth float on water?
a. Light weight of the plant
b. Spreading, feathery root system
c. Bulbous stems filled with air
d. Light, rounded, waxy leaves
34. Which one of the following is NOT a work of the muscular system?
a. It supports the body. C. it protects the inner organ.
b. It helps the body move. D. it gives shape to the body.
35. What body part is present in all vertebrates?
a. Lungs c. spiracle
b. Gills d. backbone
36. Some fishes eat by sucking their food. Which of the following are suckers?
I II III IV
a. I and II b. II and III c. III and IV d. I and IV
37. The pictures show the feet of different birds. Which foot will enable a bird to swim?
A. B. c. d.
38. Which injury harms the skeletal system?
a. Cut b. fracture c. sprain d. wound
39. Mangrove seeds germinate while attached to the tree. How does this help the plant in its muddy
habitat?
a. The germinating seeds grow leaves before dropping to the ground.
b. The seeds are not easily seen by feeding animals.
c. The seeds float in the water and grow in distant places.
d. When the seeds drop easily take root.
40. Coral polyps are found in colonies in tropical seas. What are these organisms?
a. Plants b. animals c. bacteria d. fungi
41. Which of these birds eat seeds as food?
a. B. c. d.
42. Where would you most likely find a bird with long, stilt-like legs and sharp, pointed beak?
a. River
b. Forest
c. Garden
d. Desert

5. 43. Which group of animals is adapted to life in air, in water and on land?
a. Fishes b. amphibians c. birds d. mollusks
44. Why can mangroves tree withstand strong waves and shifting sand along seacoasts?
a. Its spreading branches easily bend with the wind.
b. It has spreading roots arising from the trunk.
c. It has a big, strong main trunk.
d. Its trunk and branches are covered by thick bark.
45. Compost comes from decaying leaves, manure and other plant and animal wastes. Which group
of living things causes decay of plant and animal wastes?
a. Bacteria b. Land Snails c. Tiny insects d. Sow bugs and millipedes
46. Grass Grasshopper Frog Snake
Bird
Shown above is a simple food web in a grassy community. The arrow symbol ( )means
eaten by.
What would happen if all snakes are killed.
a. Grasshopper population would increase.
b. Bird and frog populations would increase.
c. Grasshopper and bird populations would increase.
d. Grass population would decrease.
47. In which part of the body does carbon dioxide leave the blood?
a. Anus b. lungs c. heart d. kidneys
48. What condition in a populated lake will most likely cause the death of fish?
a. Not enough oxygen c. lack of sunlight
b. Lack of food d. foul odor
49. What happens to the amount of oxygen in a pond when there is an overgrowth of algae?
a. It increases b. it decreases c. it remains the same. D. it disappears
50. What is one conclusion that can be made from the food web?
a. Animals depend on plants for food.
b. The organisms in a food web are all eaters.
c. All the eaters in a food web can be eaten.
d. All organisms in a food web are both eaters and eaten.
51. Which kinds of plants will you find in a tropical rainforest?
a. B. c. d.
52. Look at the fish closely.
What should be placed in the fishbowl to provide enough oxygen for the fish?
a. Pump b. corals c. plants d. snails
53. Which part or parts of the heart pumps/pump blood to all parts of the body?
a. Left ventricle c. both left and right ventricles
b. Either of the ventricles d. atria and ventricles
54. Study the flow of gases in the aquarium during the day. What gas does I represent? What gas
does II represent?
a. I – oxygen c. I – carbon dioxide
II- carbon dioxide II – other gases in the atmosphere
b. I – carbon dioxide d. I – other gases in the atmosphere
II – oxygen II – carbon dioxide

6. 55. What causes the high amount of rainfall in tropical rainforests?
a. Low temperature b. high humidity c. strong wind d. high air pressure
56. Study the flow of gases in the aquarium at night. Based on the diagram, which of the following
statements is correct?
a. Plants produce oxygen and use carbon dioxide.
b. Animals use oxygen and produce carbon dioxide.
c. Plants and animals use oxygen and produce carbon dioxide.
d. Plants and animals use carbon dioxide and produce oxygen.
57. Tropical rainforests have many trees and other plants that photosynthesize. What happens
when huge areas of tropical rainforests are destroyed?
a. Oxygen increases and carbon dioxide increases.
b. Oxygen increases and carbon dioxide decreases.
c. Oxygen decreases and carbon dioxide increases.
d. Oxygen decreases and carbon dioxide decreases.
58. Which products do NOT come from forests?
a. Fruits, nuts and grains c. Wood, paper and twine
b. Glass, plastic and metal d. Drugs, dyes and resins
59. In tropical rainforests, it rains throughout the year. What is the effect of the trees on the
movement of water that falls on the land?
a. They slow down the flow of water downhill.
b. They speed up evaporation of water from the soil.
c. They cause flooding of low-lying areas.
d. They prevent absorption of water into the soil.

7. FREE RESPONSE ITEMS
1. What characteristics of the cactus plant help it to survive in the desert?
2. What characteristic of the skeleton enables animals with bones to move?
3. Why should teeth be brushed after every meal?
4. What would be the effect of eating foods that contain calcium and fluoride on the teeth of
children?
5. Blowing the nose gently when a person has colds could prevent germs from entering the middle
ear. Explain why.
6. Why should hands be washed with soap and water before eating?
7. Shouting at a person’s ear could bring harm. Explain how it could harm the ear.
8. How can children help improve the quality of the air they breathe?
9. Ramon’s dog died because of a sickness. If you were Ramon, what would you do to get rid of the
dead dog properly?
10. If plants are placed in a dark room for a long time, they cannot stay alive. Why?
11. Why should we NOT burn leaves and twigs? Give two reasons.
12. To prevent any poisoning accident at home, where should poisonous substances be kept?
13. The residents of Brgy. Maliit na Ilog throw their garbage in the little creek behind their homes.
They say the creeks is far from the river where they wash clothes and catch fish. What is wrong
with this idea?
14. Give two reasons why forests are important.
15. The picture shows a caterpillar eating a leaf.
What animal eats the caterpillar? __________
What eats the animal that eats the caterpillar? _________
Write down the food chain.
eaten by eaten by eaten by
Leaf ______________________ _________________ ___________
16. What happens to the heartbeat after exercise?
Explain why it is important for this to happen.
17. In an experiment, the students want to find out if the corn seedlings grow best in loamy soil or
sandy soil. Their setups are shown below.
Loamy sandy
Are the setups correct?
Explain your answer.
18. Give two reasons why farmers plow the field before planting.

8. 19. With the diagram, trace and describe the path of blood from the heart and back to the heart.
Use arrow signs.
20. Trace the path of food with arrows and describe what happens to the food in the digestive
system. Start from the mouth.
21. What is wrong with using dynamite to catch fish?
22. Compare the stages in the life cycles of two insects.
A. In what ways are they similar? Give 2 similarities.
B. In what way do they differ?

9. 1. Water from different sources were collected to find out the saltiness of each. Which of these
contains the most salt?
a. Waterfall b. Lake c. River d. Sea
2. When seen from outer space, the earth looks blue. Which of the following materials causes it to
look blue?
a. Air b. land c. water d. rock
3. At which position of the Sun, Earth and Moon can one see a solar eclipse?
a. b. c. d.
4. The air temperature on 3 sunny days are shown in the table. What is the most likely
temperature (in Celsius) at noon of Day 3?
Early Morning Noon Late Afternoon
Day 1 18 ͦ 29 ͦ 19 ͦ
Day 2 17 ͦ 28 ͦ 20 ͦ
Day 3 16 ͦ 18
a. 19 ͦ b. 22 ͦ c.30 ͦ d.35 ͦ
5. In which position in the Earth’s orbit is it summer in the Southern Hemisphere?
a. 1 b. 2 c. 3 d. 4
6. What causes night and day?
a. Earth rotates.
b. Moon rotates.
c. Earth revolves around the Sun.
d. Moon revolves around the Earth.
7. Everyday, one sees the Sun rising from the East and setting in the West. But actually, it is not the
Sun that moves but the Earth. Which drawing shows the Earth’s movement that explains the
rising and setting of the Sun.
a. B. c. d.
8. Which of the following best shows that it will likely rain?
a. Dark clouds b. strong winds c. loud thunder d. lowering of temperature
9. The Moon moves around the Earth. At which position does one see a half Moon?
a. 2 and 4 b. 3 and 4 c. 1 and 3 d. 1 and 2
10. What is the best way to prevent soil erosion by the wind?
a. Allow plants to grow in the soil.
b. Scatter stones on the ground surface.
c. Dig canals around the area.
d. Build a strong fence around the area.

10. 11. The processes illustrated below happen in the water cycle.
In what correct order do these processes occur?
b. 1 – 2 – 3 c. 3 – 1 – 2
c. 2 – 1 – 3 d. 2 – 3 – 1
12. What are needed in cloud formation?
a. Water, heat and low temperature
b. Water vapor, wind and low temperature
c. Water vapor, dust and low temperature
d. Water vapor, dust and wind
13. At what position of Moon will an observer on Earth see a full Moon?
a. I b. II c. III d. IV
14. Which of the following takes the most number of days to complete?
a. One revolution of the Earth
b. One revolution of the Moon
c. One rotation of the Earth
d. One rotation of the Moon
15. Which of the following diagrams shows a lunar eclipse?
a. b. c. d.
16. In what month would the warmth of summer be experienced in the Southern Hemisphere?
a. June b. September c. December d. March
17. In which rock layers are remains of aquatic organisms commonly found?
a. Igneous b. intrusive c. metamorphic d. sedimentary
18. Here is a drawing of water cycle. What happens in no. 1?
a. Evaporation
b. Condensation
c. Evaporation and condensation
d. Evaporation, condensation and precipitation

11. 19. What kind of weather is described in the weather chart?
Weather Element Description
Sky Overcast
Wind speed Strong (250 kph)
Precipitation 200 mm
a. Sunny b. Cloudy c. Rainy d. Stormy
20. What describes the process in the water cycle which returns water from the air to the Earth’s
surface?
a. Liquid water turns into gas.
b. Liquid water falls from dark clouds.
c. Water escapes from plant leaves.
d. Water in the air turns to liquid.
21. Which of the following statements is true about the orbits of planets around the sun?
a. The orbits are in the form of a circle.
b. Some planets revolve in a clockwise direction.
c. The planets move in a counterclockwise direction.
d. The planets move around the Sun at the same speed.
22. When people travel to high places, they feel their ears pop or crack. Why?
a. Air is cooler.
b. Air is cleaner.
c. There is more air particles.
d. There are less air particles.
23. In the water cycle, water from the Earth’s surface evaporates. What is the source of energy for
this process?
a. Wind b. sunlight c. gravity d. air pressure
24. Which of the following features of the Earth’s landscape is correctly paired with its wise use?
a. Steep – mountains for residential areas
b. Plains – for growing crops
c. Rivers – for garbage disposal
d. Mangrove areas – for fishponds
25. A lake was thickly covered with waste materials. Then, many dead fish were found floating on
the water. What could have caused the death of the fish?
A. Waste materials blocked sunlight.
B. Waste materials lessened the amount of water in the lake.
C. Decaying waste materials produced a foul smell.
D. Decaying waste materials used up most of the oxygen dissolved in the water.
26. Why is the Sun the only star that can be seen during the day
a. The Sun is bigger than the other stars.
b. The Sun is hotter than the other stars.
c. The Sun is the closest star to Earth.
d. The Sun is the brightest star.
27. Suppose the following materials are used up. Which of them can be produced at the shortest
time?
a. Soil b. food c. forest d. petroleum
28. According to the map showing earthquake epicenters and volcanoes, Australia is free from
volcanoes. Why is this so?
a. There are no faults in Australia.
b. Rocks are so hard and difficult to melt.
c. The country is far above the Earth’s hot core.
d. Australia is away from the boundary of a plate.

12. 29. Imagine the following blocks of rock marked by a fault.
What movement will cause rock block I to move upward?
a. I and II push toward each other.
b. I and II pull away from each other.
c. I slides forward and II backward.
d. I slides backward and II forward.
30. An earthquake has its epicenter in Lanao. How will intensity and magnitude of the earthquake
compare as one moves farther away from Lanao?
a. Both intensity and magnitude decrease.
b. Intensity decreases and magnitude increases.
c. Magnitude decreases and intensity increases.
d. Intensity decreases and magnitude remains the same.
31. The illustration show 3 types of plate movement.
In which plate movements will earthquakes occur?
a. I and II b. I and III c. II and III d. I, II and III
32. Volcanic eruptions are also accompanied by earthquakes. What causes these earthquakes?
a. Movement of magma through vents.
b. Movement of rock layers along faults.
c. Throwing out of a huge amount of volcanic ash.
d. Melting and boiling of rocks inside the volcano.
33. The illustration below shows 3 types of plate movement.
Which plate movement or movements most likely caused the formation of Mayon Volcano?
a. I only b. II only III. I and II only d. I, II and III only
34. A liquid rises in the medicine dropper releasing a squeezed rubber bulb. Why does this happen
to the liquid?
a. It is pulled up by air pressure.
b. It sticks to the sides of the medicine dropper.
c. It is sucked up by the rubber bulb.
d. It is pushed by air pressure.

13. FREE RESPONSE ITEMS
1. This is how an improvised wind vane looks. From what direction does the wind come?
2. Why does a person feel warm and sticky before the rain falls?
3. Draw different shapes of the Moon a few days after new Moon to the next new Moon.
_____ _____ _____ _____ _____ _____ _____ _____
4. Why is parked car usually wet in the morning even if it did not rain the night before?
5. The Sun appears to move from east to west during the day. How would you describe the actual
movement of the Earth that results in this observation?
6. If it is daylight on one side of the Earth, it is nighttime on the other side. Why?
7. Why does lightning always come before thunder?