Unsupported browser

You are using an outdated browser. Please upgrade your browser to improve your experience.

Sign up for an Award

Participate with your entry in one of our professional or student awards.

Sign up for an award

Sign up for a Profile

Create your own profile and publish it in the iF WORLD DESIGN GUIDE.

Sign up for a profile

Learn more:


Present your project for free and win your share of EUR 50,000 in prize money.

Publish your project

Soap Fish / Popular science toys

Soap Fish
Soap Fish

Nowadays, many toys are not only toys, but also popular science, in order to stimulate children's interest in science and explore science more actively in the future. Soap fish, for example, uses the principle that surfactants can reduce the surface tension of water. When it slowly dissolves in the tail of a thin object, the tension difference between the front and back can pull the object forward. Therefore, applying soap to different parts can promote the paper fish to swim forward or rotate. This product is low-cost, has a certain educational significance for children, and has been imperceptibly popularized knowledge while playing.


Dalian Nationalities University

Dalian Minzu University
Dalian, China

Pengyue Ren,
Dalian Minzu University

Runjiu Zhao,
Dalian Minzu University

Wumeng Zhang,
Dalian Minzu University

Xinyi Shi,
Dalian Minzu University

Go to profile