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WorksheetsScience 4 Reviewer
Total questions: 40
Worksheet time: 20mins
Dr. Fe del Mundo is a renowned Filipino scientist known for her work in which area of medicine?
Cardiology
Pediatrics
Neurology
Dentistry
Which invention by Dr. Fe del Mundo helped improve the care of newborn babies in rural areas?
The first artificial heart
An affordable and portable incubator
A vaccine for tuberculosis
A new method of surgery for infants
Which Filipino scientist developed a natural mosquito repellant from the oil of a local plant?
Dr. Lourdes Cruz
Dr. Rolando dela Cruz
Dr. Gavino Trono
Dr. Julian Banzon
What was the significance of Dr. Julian Banzon's research on coconut oil?
He proved that it could cure diseases.
He developed a way to make it into biodiesel, providing an alternative fuel source.
He discovered its potential as a cleaning agent.
He used it as an ingredient in cooking.
Which scientist is credited with the invention of the water-powered car, an idea which, although controversial, was inspired by environmental concerns?
Gregorio Zara
Agapito Flores
Daniel Dingel
Eduardo Quisumbing
How did Dr. Gregorio Zara's invention of the videophone impact communication?
It made long-distance communication possible without the need for physical letters.
It allowed for real-time visual communication across distances, which was innovative for its time.
It replaced all forms of communication, including written and verbal.
It was used mainly for entertainment purposes.
Which foreign scientist's invention of the electric light bulb has significantly influenced how Filipinos live and work?
Thomas Edison
Alexander Graham Bell
Nikola Tesla
Albert Einstein
What lesson can be learned from the invention of the fluorescent lamp, which is often attributed to Filipino scientist Agapito Flores?
Inventions are always created by a single person.
The development of inventions is often a collaborative and ongoing process.
Only foreign scientists create impactful inventions.
The fluorescent lamp was not a significant invention.
Dr. Eduardo Quisumbing is known for his extensive research on Philippine orchids. How does his work contribute to environmental conservation?
It provides knowledge that helps in the preservation and cultivation of native plant species.
It leads to the discovery of new fossil fuels.
It allows people to destroy forests more efficiently.
It encourages the introduction of foreign plant species to the Philippines.
Marie Curie is a famous foreign scientist known for discovering radium. How did her discovery influence medical practices worldwide, including in the Philippines?
It allowed the creation of powerful medicines for common colds.
It led to the development of radiation therapy, which is used to treat cancer.
It helped in the invention of new surgical tools.
It made vaccines more effective.
Which of the following inventions has the greatest impact on reducing water wastage in Filipino households?
Electric fan
Water purifier
Rice cooker
Fluorescent lamp
How has the invention of the refrigerator most significantly affected the lifestyle of families in the Philippines?
It allows families to store food for longer periods.
It helps in cooking meals faster.
It reduces the need for manual labor in food preparation.
It increases the consumption of processed food.
Which local invention has helped improve the efficiency of farming in rural Philippine communities?
Solar-powered lamps
Mechanical rice thresher
Electric tricycle (e-trike)
Digital rice cooker
What impact has the invention of LED bulbs had on electricity consumption in Filipino households?
Increased the cost of electricity
Reduced electricity consumption significantly
Made lighting less bright
Increased the use of traditional lamps
Which invention in the local community has most contributed to better waste management practices?
Biogas digester
Electric stove
Plastic water bottles
Air conditioning units
Which of the following materials will most likely react with vinegar to produce bubbles?
Plastic
Metal
Paper
Baking soda
Which of the following materials is least likely to burn when exposed to fire?
Rubber
Cotton cloth
Glass
Wood
Which of the following materials is biodegradable and can be used for composting?
Aluminum can
Banana peel
Styrofoam
Plastic bag
Which of the following substances is known to cause a chemical reaction when mixed with bleach, potentially producing harmful fumes?
Water
Vinegar
Detergent
Soap
Which material is most likely to degrade in the environment without leaving harmful residues?
Plastic bottle
Glass jar
Paper bag
Metal can
What change happens to wood when it is burned in an open fire?
It turns into liquid
It releases oxygen
It transforms into ash and smoke
It becomes stronger
When coal is burned at high temperatures, what is one of the primary products formed?
Water vapor
Carbon dioxide
Hydrogen gas
Iron
How does freezing water affect its physical properties?
Water expands and turns into a solid (ice).
Water contracts and becomes denser.
Water changes color to white.
Water evaporates and disappears.
What happens to the molecular structure of metal when it is heated?
The molecules move slower.
The molecules expand and the metal may melt.
The molecules contract.
The metal hardens.
What is the effect of high heat on the sugar used in cooking Filipino desserts like leche flan?
It turns the sugar into a powder.
It caramelizes the sugar, turning it brown.
It causes the sugar to dissolve into water.
It evaporates the sugar completely.
Which of the following is the best way to minimize harmful effects when handling reactive materials in the household?
Use them in large quantities.
Store them in open containers.
Wear protective gloves and goggles.
Mix them with other household chemicals.
What is an effective alternative to burning leaves and other organic waste in the community?
Burying them underground
Turning them into compost for gardens
Throwing them in the river
Collecting them in plastic bags for disposal
Which practice can help reduce the harmful impact of burning plastic waste?
Burning plastic in an open area
Recycling plastic materials instead of burning
Burning plastic with other biodegradable waste
Burning plastic only during the rainy season
What is the best way to handle broken glass to prevent injury and environmental harm?
Throw it directly into the trash bin.
Bury it in the backyard.
Wrap it in thick newspaper before disposal.
Use it as a decoration in the garden.
How can communities in the Philippines minimize the harmful effects of chemical waste on their environment?
Dispose of chemical waste in rivers.
Use designated hazardous waste facilities.
Mix chemical waste with household trash.
Burn chemical waste to eliminate it.
What scientific approach could be used to address the problem of flooding due to improper waste disposal in the barangay?
Ignoring the waste problem
Implementing a waste segregation program
Burying all waste in the community park
Burning all waste materials
Which environmental concern can be mitigated by planting more trees in the local community?
Air pollution
Water scarcity
Noise pollution
Soil erosion
What is a possible scientific solution to reduce the overuse of plastic bags in local markets?
Encourage the use of reusable bags made from cloth or bayong.
Increase the production of plastic bags.
Provide plastic bags for free.
Burn used plastic bags regularly.
Which of the following is a community action that can reduce water pollution in local rivers?
Throwing garbage directly into the rivers
Establishing a community-wide waste management system
Reducing the amount of laundry detergent used at home
Allowing factories to discharge waste into the rivers
How can the community address the problem of increasing air pollution from vehicle emissions?
Use more private vehicles for transportation.
Increase the number of diesel-powered buses.
Promote the use of bicycles and walking.
Burn more fuel to clear the air.
When conducting a survey on waste management practices in your community, what is the best first step?
Distribute the survey forms randomly without any instructions.
Group the participants by age and occupation before giving the survey.
Assume everyone understands waste management well.
Interview only those who are involved in waste management.
Which method would be most effective in classifying data collected from a community survey about local pollution sources?
Sorting the data by the time of day it was collected.
Grouping the data based on the type of pollution (e.g., air, water, noise).
Mixing all data together without categorizing.
Ignoring any data that seems irrelevant.
When presenting survey results to the community, what is an important factor to consider?
Only show the positive findings to avoid conflict.
Communicate the findings clearly and honestly, including all data.
Exaggerate the results to make them seem more important.
Use complicated scientific terms to impress the audience.
During a guided survey on environmental concerns, how should conflicting opinions from participants be handled?
Ignore the conflicting opinions.
Encourage an open-minded discussion to understand different viewpoints.
Choose only one opinion to present in the final report.
Argue with participants who disagree.
What attitude is most important to maintain when analyzing data from a survey on environmental issues?
Closed-mindedness, focusing only on personal beliefs
Open-mindedness, considering all data and perspectives
Indifference, disregarding any surprising results
Bias, prioritizing data that supports one's own views
