Bellows

High school (ages 12+)
Science & Technology

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/bellows

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 pneumatic principle?Operates via controlled volume changes creating pressure differentials for air displacement
2. What is the historical significance?Crucial for early metallurgy, enabling higher furnace temperatures for smelting and forging
3. What are bellows and how do they work?Bellows are like a big bag with two plates that move apart and together. When the plates pull apart, air rushes in through a one‑way valve, and when they push together, the air is squeezed out through a nozzle.
4. Why do bellows help make fires hotter?By pushing more air into a fire, bellows give the flames extra oxygen, which makes the fire burn brighter and hotter.

Fluid Dynamics: The study of fluids (liquids and gases) in motion and the forces acting on them.
Pressure Differential: The difference in pressure between two points, which drives fluid flow.
Metallurgy: The science and technology of metals, including their extraction, purification, and working.