Ana uses a cellphone to exchange messages with her cousin in Cebu. What area of life does this use mainly support?

The panels compare milk storage without and with a refrigerator. What benefit does the change provide?

Jeepneys carry passengers around a barangay. What area of life do they mainly serve?

What changed when Rico used a laptop's word processor instead of handwriting a report?

A farmer uses a solar pump to water crops. Under what area of life would you group this use?

What is the main way a basic burglar alarm helps protect a home?

Taking prescribed erythromycin treats certain bacterial infections. What area of life does this invention mainly support?

The panels show journeys between the same places. How did using the later invention affect the trip?

A family watches a television comedy for enjoyment. What area of life does this use serve?

Which information can a video phone send during a live conversation?

Under what area of life would you classify a stove used to prepare a family's daily meals?

What is one benefit of electric lighting for evening tasks?

A classroom projector displays a lesson for pupils to discuss. What area of life benefits from this use?

Which change in daily work was made possible by powered steamboats?

Which pair shows one invention helping both education and entertainment?

How can Mila gather firsthand information about an invention's use in her barangay?

When studying an invention's impact, why describe life before and after it was introduced?

Before designing a device to help residents collect water, which question should an inventor investigate first?

What useful invention grew from Percy Spencer's unexpected observation of melted candy during radar research?

What is the main job of a small airplane's propeller?