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100 ITEMS

Total questions: 100

Worksheet time: 53mins

Name
Class
Date
1.

A scientist's primary role is to conduct researches and experiments to:

a)

Market new products.

b)

Expand their knowledge and understanding.

c)

Improve existing services.

d)

Develop original ideas.

2.

Who is defined as the person who turns creative ideas into practical solutions to improve existing products, processes, or services?

a)

Scientist

b)

Inventor

c)

Researcher

d)

Innovator

3.

Which scientific skill involves relying on your senses and sense organs to collect information about an object or event?

a)

Inferring

b)

Observing

c)

Communicating

d)

Classifying

4.

Grouping things into smaller categories based on similar properties or given criteria is called:

a)

Inferring.

b)

Predicting.

c)

Classifying.

d)

Comparing.

5.

What is the process of providing a temporary explanation based on your observations?

a)

Predicting

b)

Inferring

c)

Measuring

d)

Communicating

6.

The skill that involves stating the outcome of a future event based on patterns of evidence is:

a)

Comparing.

b)

Classifying.

c)

Predicting.

d)

Inferring.

7.

The skill of transforming observations or data into an understandable format, such as through charts or graphs, is:

a)

Measuring.

b)

Inferring.

c)

Communicating.

d)

Predicting.

8.

Which scientific attitude is shown by seeking answers and asking questions about things around you?

a)

Humility

b)

Honesty

c)

Curiosity

d)

Open-Mindedness

9.

A scientist who recognizes the ideas of other people and listens to criticisms is demonstrating:

a)

Creativity.

b)

Humility.

c)

Curiosity.

d)

Open-Mindedness.

10.

Which attitude requires a scientist to admit when they miscalculate or misinterpret their observations?

a)

Honesty

b)

Humility

c)

Creativity

d)

Open-Mindedness

11.

Providing an accurate account of information and not altering any data to please others is an example of:

a)

Honesty.

b)

Creativity.

c)

Humility.

d)

Curiosity.

12.

Using different strategies and not restricting oneself to one approach in problem-solving demonstrates:

a)

Honesty.

b)

Logic.

c)

Creativity.

d)

Open-Mindedness.

13.

A student notes that a basketball is larger than a tennis ball. Which scientific skill is applied?

a)

Inferring

b)

Classifying

c)

Predicting

d)

Comparing and contrasting

14.

A scientist records the weight of a soil sample using a standardized scale. Which scientific skill is this?

a)

Observing

b)

Measuring

c)

Inferring

d)

Communicating

15.

A report with diagrams showing the results of an experiment is an application of which skill?

a)

Measuring

b)

Communicating

16.

The observation "The ice cream melted when left on the table" leads to the inference:

a)

The table is sticky.

b)

Heat causes the ice cream to melt.

c)

The ice cream was spoiled.

d)

The street is flooded.

17.

A pupil is enthusiastic and attentive when listening to an opposing viewpoint. This is a sign of being:

a)

Honest.

b)

Humble.

c)

Curious.

d)

Open-minded.

18.

A researcher makes sure to properly cite all sources used in a written report. This demonstrates integrity and respect for:

a)

Scientific skills.

b)

Intellectual property.

c)

Creativity.

d)

Open-mindedness.

19.

Which skill is necessary when observing different flowers to determine similarities and differences among them?

a)

Classifying

b)

Inferring

c)

Comparing and contrasting

d)

Predicting

20.

A scientist uses their knowledge, skills, and curiosity to explore the world and understand nature. This is the definition of a:

a)

Inventor.

b)

Innovator.

c)

Scientist.

d)

Engineer.

21.

Which component of the circulatory system helps your body fight off infections and diseases?

a)

Red blood cells

b)

Platelets

c)

White blood cells

d)

Plasma

22.

The most productive way of learning science is to ask questions and to:

a)

Consult an expert.

b)

Follow a manual.

c)

Find answers to them.

d)

Perform one experiment.

23.

Which scientific attitude is demonstrated by a scientist who combines logic, creativity, and curiosity to analyze unexpected data?

a)

Honesty

b)

Creativity

c)

Humility

d)

Open-Mindedness

24.

Which part of the GI tract helps move the food down the esophagus?

a)

Stomach

b)

Tongue

c)

Large intestine

d)

Liver

25.

The process of pumping blood throughout the body is the main function of the:

a)

Respiratory system.

b)

Digestive system.

c)

Muscular system.

d)

Circulatory system.

26.

Which body system is responsible for movement, stability, and support?

a)

Skeletal system

b)

Muscular system

c)

Circulatory system

d)

Digestive system

27.

The physical breakdown of food into smaller pieces by the teeth is called:

a)

Chemical Digestion.

b)

Peristalsis.

c)

Mechanical Digestion.

d)

Absorption.

28.

Which involuntary muscle movement transports the food from the esophagus through the stomach?

a)

Contraction

b)

Peristalsis

c)

Flexing

d)

Extension

29.

In which part of the digestive system does chemical digestion get completed, allowing most nutrients to be absorbed?

a)

Stomach

b)

Large intestine

c)

Esophagus

d)

Small intestine

30.

What forms a clot to stop bleeding?

a)

White blood cells

b)

Red blood cells

c)

Platelets

31.

What are the small air sacs in the lungs where the oxygen gets absorbed into the blood?

a)

Bronchi

b)

Trachea

c)

Alveoli

d)

Bronchioles

32.

What is the chemical name for the rust that is formed when iron reacts with oxygen?

a)

Silver sulfide

b)

Iron oxide

c)

Carbon dioxide

d)

Oxygenated iron

33.

Materials that can break down biologically or chemically are categorized as:

a)

Nonbiodegradable materials.

b)

Oxo-degradable materials.

c)

Degradable materials.

d)

Hazardous materials.

34.

The rapid increase of algae in water due to chemical nutrients is called:

a)

Air pollution.

b)

Soil infertility.

c)

Eutrophication.

d)

Waste segregation.

35.

Which R of waste management means making a conscious choice of not accepting unnecessary items like plastic bags?

a)

Reduce

b)

Reuse

c)

Refuse

d)

Recycle

36.

Which R of waste management is promoted by using less harmful and nonrecyclable products such as single-use plastics?

a)

A. Reduce

b)

B. Recover

c)

C. Refuse

d)

D. Recycle

37.

The R that refers to the use of discarded items for other purposes, like composting or generating energy from waste, is:

a)

Reduce.

b)

Reuse.

c)

Recycle.

d)

Recover.

38.

Which scientific skill is applied when you compare the size of a liquid based on a graduated cylinder?

a)

Predicting

b)

Measuring

c)

Observing

d)

Classifying

39.

The canals are clogged by waste is a possible inference for which observation?

a)

The ice cream melted when left on the table.

b)

The street is flooded after a heavy rain.

c)

There are broken pieces of glass scattered on the floor.

d)

The plant is growing faster.

40.

What is the name of the toxic smoke with a very unpleasant smell released by burning fossil fuels?

a)

Ashes

b)

Soot

c)

Fume

d)

Particulate

41.

Whose famous work established the relationship between mass and energy?

a)

Angel Alcala

b)

Nikola Tesla

c)

Albert Einstein

d)

Thomas Edison

42.

The work of Albert Einstein influenced the development of which widely used technology?

a)

Alternating current (AC) motor

b)

The telephone

c)

Global positioning system (GPS)

d)

The phonograph

43.

Who is the Filipino national scientist recognized for her contributions to pediatrics?

a)

Fe Del Mundo

b)

Angel Alcala

c)

Angel C. Alcala

d)

Dr. Fe Del Mundo

44.

Fe Del Mundo invented a low-cost incubator specifically for babies in rural areas who suffered from what condition?

a)

Diarrhea

b)

Measles

c)

Jaundice

d)

Polio

45.

The inventor of the phonograph, a device that allowed people to record and playback sound, was:

a)

A. Alexander Graham Bell.

b)

B. Nikola Tesla.

c)

C. Steve Jobs.

d)

D. Thomas Edison.

46.

Whose groundbreaking invention laid the foundation for modern cinema?

a)

Thomas Edison

b)

Alexander Graham Bell

c)

Tim Berners-Lee

d)

Albert Einstein

47.

Angel Alcala is best known for promoting what in aquatic ecosystems across the Philippines?

a)

Artificial reefs

b)

Biodiversity

c)

Fishing industries

d)

Waste management

48.

Who is credited with developing artificial coral reefs now widely used for Southeast Asian fisheries?

a)

Fe Del Mundo

b)

Angel Alcala

c)

Alexander Graham Bell

d)

Nikola Tesla

49.

The scientist credited as the inventor of the telephone is:

a)

Nikola Tesla.

b)

Thomas Edison.

c)

Alexander Graham Bell.

d)

Tim Berners-Lee.

50.

Alexander Graham Bell innovated Edison’s phonograph, resulting in an improved device called the:

a)

Telegraph.

b)

Graphophone.

c)

Gramophone.

d)

AC motor.

51.

Nikola Tesla is best known for his invention of the:

a)

Telephone.

b)

Incandescent light bulb.

c)

Alternating current (AC) motor.

d)

Personal computer.

52.

The AC motor made the transmission of electricity possible over what kind of distances?

a)

Short distances

b)

Extremely limited distances

c)

Long distances

d)

Fixed distances

53.

Who collaborated to develop the world’s first commercially available personal computer?

a)

A. Albert Einstein and Nikola Tesla

b)

B. Steve Jobs and Steve Wozniak

c)

C. Fe Del Mundo and Angel Alcala

54.

The invention of the personal computer primarily improved people's productivity and made their lives:

a)

More complicated.

b)

Simpler.

c)

More competitive.

d)

Costlier.

55.

Who is the British scientist who invented the World Wide Web?

a)

A. Alexander Graham Bell

b)

B. Albert Einstein

c)

C. Tim Berners-Lee

d)

D. Nikola Tesla

56.

The World Wide Web was first aimed to help scientists do what?

a)

Sell their inventions

b)

Share knowledge anytime and from anywhere

c)

Develop new maps

d)

Create new programs

57.

Which scientist's work led to the development of nuclear energy to generate power?

a)

Thomas Edison

b)

Nikola Tesla

c)

Albert Einstein

d)

Angel Alcala

58.

Whose version of the incandescent light bulb was more practical and affordable than the one that existed at the time?

a)

Nikola Tesla

b)

Thomas Edison

c)

Alexander Graham Bell

d)

Steve Wozniak

59.

Fe Del Mundo developed the internationally recognized diet known as BRAT, which stands for Banana, Rice, Applesauce, and:

a)

Tea.

b)

Toast.

c)

Tuna.

d)

Turkey.

60.

Whose work emphasizes the critical importance of marine protected areas in species rehabilitation?

a)

Fe Del Mundo

b)

Nikola Tesla

c)

Angel Alcala

d)

Tim Berners-Lee

61.

What did Alexander Graham Bell's invention of the telephone revolutionize?

a)

Transportation

b)

Communication

62.

Nikola Tesla is also credited for his Tesla coil in the field of radio, TV, wireless communication, and:

a)

Nuclear energy.

b)

X-ray technology.

c)

GPS.

d)

Genetics.

63.

The collaboration of Steve Jobs and Steve Wozniak transformed how people viewed what?

a)

Automobiles

b)

Telephones

c)

Computers

d)

Medicine

64.

The invention of the World Wide Web revolutionized the way people:

a)

Travel

b)

Communicate

c)

Electrify

d)

Digitize

65.

Fe Del Mundo's research on several infectious diseases was used as a reference for using what in the Philippines?

a)

Vaccines and immunization

b)

Incubation techniques

c)

GPS technology

d)

Coral reefs

66.

Thomas Edison's incandescent light bulb innovation made his version more practical and:

a)

Brighter.

b)

Complex.

c)

Affordable.

d)

Durable.

67.

Who utilized their creativity and problem-solving skills to make things better and more efficient?

a)

Scientist

b)

Inventor

c)

Innovator

d)

Researcher

68.

Which scientist's work is used in many applications such as Waze, Google Maps, and Apple Maps?

a)

Nikola Tesla

b)

Thomas Edison

c)

Albert Einstein

d)

Angel Alcala

69.

Angel Alcala's artificial coral reefs are now widely used for what purpose?

a)

To restore and protect marine biodiversity.

b)

To create artificial fishing grounds.

c)

To enhance tourism in coastal areas.

d)

To support marine research.

70.

Which invention laid the foundation for modern cinema?

a)

Telephone

b)

AC Motor

c)

Phonograph

d)

World Wide Web

71.

The invention of the personal computer improved people's:

a)

Artistic skills.

b)

Manual labor.

c)

Productivity.

d)

Athletic performance.

72.

What nationality is Albert Einstein listed as being, besides German?

a)

British

b)

American

c)

Serbian

d)

Filipino

73.

Alexander Graham Bell's invention of the telephone led to the establishment of networks and the spread of:

a)

Goods.

b)

Information.

c)

Energy.

d)

Wealth.

74.

The AC motor made it possible to transmit electricity over long distances, which significantly changed the way electricity is:

a)

Stored and transported.

b)

Measured and recorded.

c)

Transmitted and used.

d)

Produced and taxed.

75.

Which Filipino is a national scientist known for pediatrics?

a)

Angel Alcala

b)

Nikola Tesla

c)

Fe Del Mundo

d)

Tim Berners-Lee

76.

What type of energy did Einstein's work influence the development of for generation?

a)

Solar energy

b)

Wind energy

c)

Nuclear energy

d)

Hydro energy

77.

Steve Jobs and Steve Wozniak's invention transformed how people viewed computers and what they could accomplish with:

a)

Themselves.

b)

Them.

c)

The internet.

d)

Their hands.

78.

What kind of individual is described as being creative, coming up with original ideas, and developing new products?

a)

Scientist

b)

Innovator

c)

Engineer

d)

Inventor

79.

What nationality is Nikola Tesla listed as being, besides Serbian?

a)

American

b)

German

c)

British

d)

Filipino

80.

The graphophone was an improved device based on whose invention?

a)

Thomas Edison

b)

Nikola Tesla

c)

Steve Wozniak

d)

Alexander Graham Bell

81.

When a material undergoes a chemical reaction, which of the following results?

a)

A. A change in size and shape

b)

B. The original materials can be recovered physically

c)

C. The formation of a new material

d)

D. Only a change in temperature

82.

What is the ability of a material to react with another material called?

a)

Flammability

b)

Deterioration

c)

Reactivity

d)

Tarnishing

83.

Substances or materials that undergo a chemical change are called:

a)

Products.

b)

Reagents.

c)

Reactants.

d)

Catalysts.

84.

What happens when silver sulfide forms on silverware?

a)

Tarnishing

b)

Flammability

85.

What causes milk to smell bad when it spoils?

a)

Heat

b)

The formation of a new substance by bacteria

c)

Freezing

d)

Improper storage

86.

Wood and coal are usually used as fuel sources because they are:

a)

Corrosive.

b)

Deteriorating.

c)

Flammable.

d)

Reactive.

87.

What is the toxic smoke with a very unpleasant smell that is a product of a chemical reaction called?

a)

Ash

b)

Fume

c)

Soot

d)

Smoke

88.

The tendency of a material to lose its quality due to changes like wear and tear, and chemical changes like corrosion, is called:

a)

Reactivity.

b)

Tarnishing.

c)

Flammability.

d)

Deterioration.

89.

Materials like paper and wood that break down biologically or chemically are known as:

a)

Nonbiodegradable materials.

b)

Degradable materials.

c)

Reactive materials.

d)

Hazardous materials.

90.

Bags labeled "oxo-degradable" contain materials that can safely break down and:

a)

Decompose.

b)

Corrode.

c)

Harden.

d)

React.

91.

Which of the following is an example of a biodegradable material?

a)

Plastic

b)

Aluminum

c)

Coffee grounds

d)

Glass

92.

Which of the following is an example of a nonbiodegradable material?

a)

Fruit scraps

b)

Aluminum

c)

Paper

d)

Wood

93.

What is the result of harmful chemical reactions that occur in landfills, bodies of water, and air?

a)

Homeostasis

b)

Eutrophication

c)

Pollution

d)

Deterioration

94.

Which of the following is a source of water pollution?

a)

Emissions from vehicles

b)

Quarrying and mining

c)

Heavy metals

d)

Oil spills

95.

What results from disposing of detergents, soaps, and fertilizers in bodies of water?

a)

Air pollution

b)

Soil infertility

c)

Eutrophication

d)

Tarnishing

96.

Eutrophication results in a shortage of what for animals living in the sea?

a)

Food

b)

Light

c)

Oxygen

d)

Space

97.

Land is polluted when the soil becomes:

a)

Overly productive.

b)

Acidic and infertile.

c)

Moist and dark.

d)

Hard and metallic.

98.

Which of the following is an air pollutant?

a)

Industrial waste

b)

Agricultural runoff

c)

Solid particulates like dust

d)

Untreated sewage

99.

Which R of waste management encourages extending the lifespan of materials such as glass bottles and plastic containers?

a)

Refuse

b)

Reduce

c)

Reuse

d)

Recycle

100.

The Republic Act 9003 is also known as the:

4 lines