SCIENCE
Multiple Choice
Direction: Choose the letter of the correct answer.
1. Digestive system consist of different organs that perform its different function what do you call to
the muscular tube that connects the pharynx to the throat to the stomach?
A. Mouth
B. Esophagus
C. Small intestine
D. Large intestine
2. What kind of relationship is demonstrated when a flea lives in a dog and feeds on the dog's blood?
A. Parasitism
B. Mutualism
C. Predation
D. Neutralism
3. What do you call to the organism that consumes a producer?
A. Autotrophs
B. Consumer
C. Heterotroph
D. Predator
4. The main rainforests are found in the following areas:
A. South America, Africa, South East Asia
B. South America, Africa, North East Asia
C. South America, North America, Africa
D. Europe, North America, Australia
5. The climate in a Tropical Rainforest can be described as.
A. Cold, Wet and Humid
B. Humid, wet and Hot
C. Humid, dry and Hot
D. Cold, Wet and unstable
6. How can Mangroves stand still in the waves?
A. By their roots
B. By their leaves
C. By their stem
D. By their types of soil
7. Salinity means the level of _____ in the water.
A. Oxygen
B. Nitrogen
C. Salt
D. Salcite
8. Which serves as a temporary storage of sperm cells before they are released in the urethra?
A. Epididymis
B. Testes
C. Prostate gland
D. Cowper's gland
9. What do you call the union of egg and sperm cell?
A. Menstruation
B. fertilization
C. puberty
D. ovulation
10. Where does fertilization usually take place?
A. ovary
B. fallopian tube
C. cervix
D. vagina
11. Which of the following pertains to the function of skeletal system?
A. Protect your organs
B. Make blood cells
C. help your body move with muscles
D. all of them
12. What are the bones that protect your heart and lungs?
A. sternum
B. clavicle
C. rib cage
D. femur
13. Which of the body systems has veins and arteries and carries oxygen to our cells?
A. circulatory system
B. respiratory system
C. digestive system
D. skeletal system
14. The place in the lungs where the gases exchange is the ________.
A. Alveoli
B. Diaphragm
C. Bronchus
D. Nose and mouth
15. What is the function of a nerve?
A. To transport needed food around the body
B. To control body movement for reflexes.
C. To carry messages (impulses) to and from the Central Nervous System
D. All of the above
16. Ursula sat at her bedroom window for a week, staring at the Moon. It was initially spherical and
well-lit, which she observed. The week came to a conclusion, and the moon was partially illuminated
on the left side and appeared to have been halved. What terms do scientists use to characterize
this apparent phase or shape?
A. Waning
B. Wasting
C. Waxing
D. Warming
17. The star that always points to the north is the ____________.
A. Betelgeuse
B. Polaris
C. Rigel
D. Sirius
18. Based from the ancient people, the alignment of the stars is called __________.
A. Asterism
B. Galaxies
C. Patterns
D. Supernova
19. The largest planet (by mass) in our solar system is?
A. Uranus
B. Saturn
C. Jupiter
D. Venus
20. Occurs due to exposure changing temperature in mountains, tundra and hot desserts.
A. Oxidation
B. Hydrolysis
C. Biological Weathering
D. Mechanical Weathering
21. The mixture of rock particles, minerals, decayed organic materials, air and water is called
______________.
A. Gravel
B. Litter
C. Silt
D. Rock
22. What will happen if there are no more trees in the forest?
A. Animals will be free.
B. More rocks will come out.
C. The soil will become hard.
D. The soil will easily be eroded.
23. ____________ winds are stronger than ordinary breeze as they are formed by high
temperatures in coastal areas.
A. Cyclone
B. ITCZ
C. Monsoon
D. Weather
24. It is a large and violent whirlwind observed in different parts of the Earth. And it can bring
violent wind and thunderstorms to the affected areas.
A. Cyclone
B. Monsoon
C. Thunderstorm
D. Wind
25. The surface of the moon is covered with _______, mostly caused by asteroids crashing into
the moon early in the history of the solar system.
A. Crates
B. Meteors
C. Seas
D. Storm
26. Why rocks in other places do formed a mushroom shape?
A. It is due to the microorganisms living in the rock.
B. It is due to wind blows that make the shape of the rock.
C. It is due to the rainfall that falls on the surface of the rock.
D. It due to the chemicals that people are throwing to the rock.
27. If you see a new moon today, when will you probably see another new moon again?
A. After 3 days
B. After 4 months
C. After 4 weeks
D. After 2 months
28. Landslides on mountain slopes show the force of _______.
A. Gravity
B. Running water
C. Run-off
D. Wind
29. When are you going to wear thick clothes or sweat shirts to protect your body from
experiencing the cold breeze brought by the monsoon?
A. During summer season.
B. During low pressure system.
C. When there is southeast monsoon.
D. When there is a northeast monsoon.
30. Rocks pass through various changes called
A. Rock scheme
B. Rock cycle
C. Rock history
D. Rock evolution
31. Any substance that is being dissolved in a mixture.
A. Solvent
B. Mixture
C. Heterogenous Mixture
D. Solute
32. In a salt solution, which substance is the solute?
A. Liquid
B. Salt
C. Sugar
D. Water
33. Water is the universal solvent because it is ____________?
A. For everyone
B. Present in the universe
C. Abundant and can be found everything
D. Most used to dissolve almost everything
34. Which of these factors does NOT affect the solubility of materials?
A. size of particles
B. stirring
C. temperature
D. thinking
35. Which of these materials dissolves easily in hot water?
A. oil
B. paper
C. sand
D. Sugar
36. Colloids can be found in our house. Which of the following examples of colloid will help you in
boosting your immune system?
A. Water and milk
B. Water and dust
C. Water and gelatin
D. Water and cornstarch
37. Which of the following statements best describes evaporation? The process by
which_________________________.
A. Solid changes directly into a gas
B. Substance is made by a chemical reaction
C. Particles leave a liquid and become a gas
D. Particles leave a gas and become a liquid
38. Evaporation occurs when water changes into ______________.
A. snow
B. solid
C. vapor
D. transpiration
39. Which solid-solid mixture can be separated by magnetism?
A. flour and rock salt
B. needle and safety pins
C. thumbtacks and iron screw
D. iron nails and aluminum nails
40. Which of the following statements BEST describes mixtures?
A. Most substances change their components.
B. Only solids can be combined to form mixtures.
C. Only liquids can be combined to form mixtures.
D. A combination of two or more substances that are not chemically combined.
41. Which of the following substances will form a homogeneous mixture when combined?
A. Sugar+ milk powder + coffee granules
B. Mixed fruits + nestle cream + milk
C. Sand + water + gravel + cement
D. Water + oil
42. It is the location of an object.
A. Motion
B. Distance
C. Position
D. Reference point
43. A bus is running towards the gasoline station from Cainta. Compared to which reference
point is the bus in motion?
A. Cainta
B. Gasoline station
C. Road
D. Center island
44. All movements are compared with a background that is assumed stationary. This background
is called a ____________.
A. Force
B. Distance
C. Frame of Reference
D. Motion
45. It is a change in an objects position.
A. Acceleration
B. Motion
C. Speed
D. Velocity
46. It is important to include a reference point when describing position.
A. False
B. True
C. Maybe
D. Sometimes
47. Which of the following demonstrates periodic motion?
A. players playing on a football ground
B. Earth’s revolution
C. jogging
D. swaying leaves
48. The merry-go-round demonstrates what motion?
A. rectilinear
B. periodic
C. circular
D. rolling
49. What motion has a ball rolling on the ground?
A. Rolling Motion
B. Periodic Motion
C. Rectilinear Motion
D. Circular Motion
50. Rafael covers a distance of 15km in 5 hours. What is the biker’s speed?
A. 15 kph
B. 3 kph
C. 45 kph
D. 60 kph
51. What is the speed of the baseball that moves about 10 meters in 2 seconds?
A. 5 m/s
B. 20 m/s
C. 1m/s
D. 50 m/s
52. If Rhianna travel 80 km in 2 hours, what is her average speed?
A. 10 kph
B. 40 kph
C. 20 kph
D. 4 kph
53. Which of the following shows a fast speed?
A. 5 m/s
B. 4 m/s
C. 10 m/s
D. 25 m/s
54. Which illustration shows the movement of the hula hoop around the body?
A.
B.
C.
D.
55. To find the speed of an object, you need to know the distance and ____.
A. force
B. position
C. time
D. friction
56. An object thrown upwards falls because of ____.
A. gravity
B. pull
C. friction
D. push
57. Which of the following activities produce or form a new product?
A. When a material is burn, smoke is release together with the formation of ashes.
B. When an ice cube melts due to heat.
C. When you cut a piece of wood.
D. All of the above
58. Which of the following materials has the ability to ignite or catch fire easily?
A. dried leaves
B. leftover foods
C. fresh fruit peelings
D. diamond
59. All of the following materials can be hammered into thin sheets EXCEPT
A. aluminum
B. silver
C. diamond
D. gold
60. . It is the ability of a material to be rigid and can resist pressure.
A. brittleness
B. hardness
C. ductility
D. flexibility