Science 4 Q1-Q4 SY 2024-20225

Who invented the first electric lamp?

• Thomas Edison
• Albert Einstein
• Alexander Graham Bell
• Isaac Newton

Answer explanation

Thomas Edison is credited with inventing the practical electric light bulb.

Which Filipino scientist invented the Moon Buggy used by NASA?

• Fe del Mundo
• Gregorio Zara
• Julian Banzon
• Agapito Flores

Answer explanation

Gregorio Zara contributed to space technology with his Moon Buggy invention.

The telephone was invented by:

• Isaac Newton
• Galileo Galilei
• Marie Curie
• Alexander Graham Bell

Answer explanation

Alexander Graham Bell invented the telephone in 1876.

Fe del Mundo is a Filipino scientist known for contributions in:

• Space exploration
• Agriculture
• Medicine and healthcare
• Electricity generation

Answer explanation

Fe del Mundo was a pediatrician who contributed to medical innovations.

Which invention is used for faster communication?

• Microscope
• Refrigerator
• Telephone
• Light bulb

Answer explanation

The telephone allows people to communicate instantly.

How does the refrigerator impact everyday life?

• It helps in traveling faster
• It provides light at night
• It keeps food fresh
• It measures temperature

Answer explanation

Refrigerators prevent food spoilage by keeping it cold.

Which of the following inventions is used in modern transportation?

• Airplane
• Microscope
• Telescope
• Calculator

Answer explanation

Airplanes allow faster travel over long distances.

What is the importance of Gregorio Zara’s two-way video telephone?

• It measures time
• It helps plants grow
• It allows video calls
• It helps people hear better

Answer explanation

Gregorio Zara invented a video call device for better communication.

What should be considered when using science inventions?

• If it is safe and beneficial
• If it is colorful
• If it looks interesting
• If it is expensive

Answer explanation

Safety and usefulness are key factors in using inventions.

Which Filipino scientist developed a method for producing alternative fuels from coconut oil?

• Jose Rizal
• Fe del Mundo
• Agapito Flores
• Julian Banzon

Answer explanation

Julian Banzon researched biofuels from coconut oil.