Phase change

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/phase-change

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 related scientific disciplines?Statistical Mechanics, Thermodynamics, Condensed Matter Physics, Materials Science, Physical Chemistry
2. Why does water turn into ice or steam?Water becomes ice when it gets cold enough to lock its molecules into a solid lattice, and it turns into steam when heat gives the molecules enough energy to move freely as a gas.
3. How do scientists study phase changes?Scientists use thermodynamics and the Gibbs free energy idea to predict when a phase change will happen, and they study how particles move and interact to understand the process.

Gibbs Free Energy: A thermodynamic potential that measures the maximum reversible work obtainable from a system at constant temperature and pressure.
Enthalpy: A measure of the total energy of a thermodynamic system, including its internal energy and the product of pressure and volume.
Entropy: A measure of the disorder or randomness in a system, or the number of possible microscopic arrangements for a given macroscopic state.
Nucleation: The initial process of forming a new thermodynamic phase, typically involving the formation of small, stable clusters of the new phase.