Los cambios de estado de la materia

The video explains the different states of matter, focusing on the physical arrangement of molecules. It covers the processes of melting, evaporation, boiling, condensation, and freezing, highlighting how temperature affects these changes. Key concepts such as melting point, boiling point, and phase changes are discussed, using water as a primary example.

What primarily distinguishes different states of the same substance?

• Color

• Physical arrangement of molecules

• Chemical composition

• Density

What is the term for the process when a solid turns into a liquid?

• Evaporation

• Condensation

• Melting

• Sublimation

At what temperature does gallium metal melt?

• 0°C

• 50°C

• 100°C

• 30°C

What happens to the particles of a liquid at its boiling point?

• They slow down

• They stop moving

• They escape and form bubbles

• They become solid

What is the process called when a gas turns back into a liquid?

• Melting

• Sublimation

• Condensation

• Freezing