“Air-Powered Flower” Craft

In this project, we create a rotating flower powered by a stream of air. I made a three-dimensional decorative flower from colored paper. The flower is attached to an axis. A cocktail straw is used as the axis. Cardboard blades are fixed to the lower end of the straw. The blades are placed inside a paper cup. A small hole is made on the side of the cup, where another cocktail straw is inserted — this serves as the air channel.

How It Works

When we blow air into the side straw, the airflow enters the cup and hits the cardboard blades.

Under the force of the air stream, the blades begin to rotate.
The straw axis rotates together with them, and the flower attached on top spins beautifully. This creates a small air turbine with a decorative element.

What This Model Demonstrates

• The basic principle of a turbine
• Conversion of air energy into mechanical rotation
• How an axis and blades work together
• The fundamentals of an air-powered drive.