Question

which example describes a stage in the technological design process?
○ a model for a prototype for a lighter breathing device for astronauts was created.
○ the study on the effect of heat on bacterial growth.
○ a study on the effect of caffeine and performance in exams.
○ an investigation shows which type of dish soap best cleans dishes.

Explanation:

The technological design process involves creating solutions (like prototypes) to meet a need. Option A involves creating a model for a prototype (a breathing device for astronauts), which is a stage in technological design. The other options are scientific studies (on heat/bacteria, caffeine/exams, dish soap) rather than technological design stages.

Answer:

A. A model for a prototype for a lighter breathing device for astronauts was created.