Superfluid

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/superfluid

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 primary superfluid element?Helium-4
2. What is the lambda point?2.17 Kelvin for Helium-4
3. Why does superfluid helium flow without friction?When helium is cooled below about 2.17 Kelvin, its atoms all act together in the same quantum state, giving the liquid zero viscosity. This lets it flow without any resistance.
4. How does a superfluid climb up the walls of a container?The superfluid climbs because surface tension pulls it up and it wants to keep the same level everywhere. This creates a thin film that rises above the liquid's surface.

Bose-Einstein Condensate: A state of matter formed by cooling bosons to near absolute zero, where they coalesce into a single quantum state.
Zero Viscosity: The property of a fluid to flow without any internal friction or resistance to flow.
Quantized Vortices: Discrete, fundamental units of rotation in superfluids, unlike continuous vortices in classical fluids.