Category: Everyday Science | Last updated: 2026-09-18

What is the minimum duration, according to health organizations like the CDC, that individuals should wash their hands with soap and water to effectively reduce the spread of germs?

A) 5 seconds
B) 10 seconds
C) 20 seconds
D) 30 seconds

Explanation

Public health guidelines, including those from the CDC, recommend washing hands for at least 20 seconds to ensure enough time for soap and friction to effectively remove germs.

Practice More Everyday Science Questions

Browse all questions