Science 4_Q1_Review

A Filipino electrician who lived and worked in the early 20th century, invented the first fluorescent lamp.

• Dr. Fe del Mundo

• C. Agapito Flores

• Maria Orosa Ylagan

• D. Roberto del Rosario

How was the invention of Maria Orosa Ylagan useful to us?

• She invented a baby bamboo incubation tube.

• She invented Banana Ketchup, which is now used as a food additive.

• She invented the first jeepney which is a remedy for our transportation problems.

• She invented the first karaoke machine which made a way of expressing our talents in singing.

If given the chance to invent something. What is the most valuable invention you would prefer that will help people solve medical problems?

• I will invent medicine to help cure dengue.

• I will invent a potion that will solve poverty.

• I will make a spaceship to travel fast to space.

• I will discover a device that understands animals.

It is the movement of people and goods from place to place.

• Agriculture

• B. Transportation

• C. Education

• D. Health

A cellphone is an invention that falls under what category?

• Entertainment

• B. Household

• C. Health

• D. Medicine

How did Gregorio Zara's invention of the videophone impact communication?

• It was used mainly for entertainment purposes

• It replaced all forms of communication, including written and verbal.

• 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.

Dr. Eduardo Quisumbing is known for his extensive research on Philippine orchids. How does his work contribute to environmental conservation?

• 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.

• It provides knowledge that helps in the preservation of native plant species.

How has the invention of the refrigerator most significantly affected the lifestyle of families in the Philippines, especially in the areas of your barangay in Brgy. San Jose?

• It helps in cooking meals faster.

• It increases the consumption of processed foods.

• It allows families to store food, especially fish for longer periods.

• It reduces the need for manual labor especially fishes in food preparation.

Which of the following materials will most likely react with vinegar to produce bubbles?

• Flour

• Baking Soda

• Metal

• Paper

Which of the following materials is biodegradable and can be used for composting?

• Aluminum cans

• Banana peel

• Styrofoam

• Plastic bag