Scuba diving

High school (ages 12+)
Sports & Games

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/scuba-diving

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 the acronym originator?Christian J. Lambertsen coined the term SCUBA in a 1952 patent
2. What is the primary breathing gas composition?Standard SCUBA uses compressed air, typically around 21% oxygen and 79% nitrogen
3. What does SCUBA stand for?SCUBA stands for Self‑Contained Underwater Breathing Apparatus. It lets people breathe on their own while underwater.
4. How does a scuba regulator help divers breathe underwater?The regulator takes the very high pressure gas from the cylinder and lowers it to match the water pressure around the diver, so the air feels normal to breathe.

Ambient Pressure: The pressure of the surrounding water, which the regulator matches for breathing.
Decompression Sickness (DCS): A condition caused by nitrogen bubbles forming in the body during rapid ascents.
Dive Computer: A device that tracks depth, time, and calculates safe ascent profiles.