What are the four primary states of matter mentioned in the passage?

• Solids, liquids, gases, and plasma

• Solids, liquids, gases, and superfluids

• Solids, liquids, gases, and Bose-Einstein condensate

• Solids, liquids, gases, and vapors

Which state of matter is characterized by having free electrical charges and being electrically conductive?

• Plasma

• Gas

• Liquid

• Solid

What is the process called when a gas changes into a liquid?

• Condensation

• Solidification

• Evaporation

• Sublimation

Which of the following is a chemical property of matter?

• Reactivity with acids

• Color

• Density

• Melting point

What happens to the molecules in a solid state of matter?

• They are tightly packed and move slowly

• They are loosely bonded and move around

• They move freely and spread apart

• They have free electrical charges