States of matter
100

What are the three main states of matter?  

Solid, liquid, and gas

200

What is sublimation and in which state of matter does it occur?

Is the process where a solid changes directly into a gas without becoming a liquid first. It happens while the substance is in its solid state.

300

What is plasma and where can it be found in nature?

Plasma is a state of matter composed of ionized gas with free electrons and positive ions. It can be found in nature in the Sun and other stars.

400

How is the phenomenon of condensation explained at the molecular level?

Gas molecules lose thermal energy, slow down, and form bonds, turning into a liquid.

500

Describe the principle behind Bose-Einstein condensation and mention an example of its experimental application.

Bose-Einstein condensation: A state of matter at temperatures close to absolute zero where bosonic atoms cool down and act as a single super-atom.