Gas mask

High school (ages 12+)
Safety & Emergency

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/gas-mask

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is a gas mask and how does it protect my face?A gas mask is a special face covering that seals around your nose, mouth, and eyes to keep bad air from getting in. It uses a filter that traps harmful gases and dust so you can breathe clean air.
2. Why were gas masks invented during World War I?Soldiers needed protection from poison gas used in battles. The war showed that simple cloth masks were not enough, so stronger, full‑face masks were created to keep soldiers safe.

Hermetic Seal: An airtight closure that prevents the passage of air or other substances.
Adsorption: The process where molecules adhere to the surface of a solid material, like gases sticking to activated charcoal.
Chemical Warfare Agents (CWAs): Substances designed to cause death or harm to humans through their toxic properties.
Self-Contained Breathing Apparatus (SCBA): A portable breathing device that supplies air from a tank, independent of the surrounding atmosphere.