Fan (machine)

High school (ages 12+)
Making & Design

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/fan-machine

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 mechanical principle?Rotation of vanes creates a pressure differential to generate airflow
2. What is the material composition?Impellers and blades are commonly constructed from wood, plastic, or metal alloys
3. What is a fan and how does it work?A fan is a machine with spinning blades that push air around. The blades spin on a motor, creating a pressure difference that moves air. The fan’s design helps air flow smoothly and keeps you cool.
4. Why do fans use electric motors?Electric motors give fans steady power and easy control. They are efficient and let fans be small and safe for homes.

Impeller: The rotating component of a fan, consisting of blades attached to a hub, responsible for air movement.
Evaporative Cooling: A thermodynamic process where the phase transition of liquid to gas absorbs heat, leading to a cooling effect on the skin.
Ventilation: The intentional introduction of outdoor air into a space for the purpose of improving indoor air quality.