Exploring States of Matter

What are the three primary states of matter?

• gas, liquid, crystal

• plasma, vapor, foam

• solid, liquid, plasma

• solid, liquid, gas

Define solid, liquid, and gas in terms of particle arrangement.

• Solid: Particles are loosely arranged and can move freely.

• Liquid: Particles are arranged in a fixed structure and cannot move.

• Gas: Particles are tightly packed and vibrate in place.

• Solid: Particles are closely packed in a fixed arrangement. Liquid: Particles are close together but can move past one another. Gas: Particles are far apart and move freely.

What is the process called when a solid turns into a liquid?

• Melting

• Freezing

• Condensation

• Sublimation

What happens to the particles in a gas when it is compressed?

• The particles in a gas spread further apart when compressed.

• The particles in a gas decrease in temperature when compressed.

• The particles in a gas move closer together and increase in pressure when compressed.

• The particles in a gas remain stationary when compressed.

Explain the term 'melting point'.

• The melting point is the temperature at which a solid becomes a vapor.

• The melting point is the temperature at which a liquid evaporates.

• The melting point is the temperature at which a gas turns into a solid.

• The melting point is the temperature at which a solid turns into a liquid.

What is the difference between evaporation and boiling?

• Boiling can happen at any temperature, while evaporation only occurs at the surface.

• Evaporation occurs only at high temperatures, while boiling happens at low temperatures.

• Evaporation happens at any temperature and only at the surface, while boiling occurs at a specific temperature throughout the liquid.

• Evaporation and boiling are the same process that occurs at different speeds.

Describe what happens to the volume of a gas when it is heated.

• The volume of a gas increases when it is heated.

• The volume of a gas remains constant when it is heated.

• The volume of a gas fluctuates randomly when it is heated.

• The volume of a gas decreases when it is heated.

What state of matter has a definite shape and volume?

• Plasma

• Gas

• Solid

• Liquid

How do temperature and pressure affect the state of matter?

• Temperature increases can lead to melting and evaporation, while pressure increases can lead to condensation and solidification.

• Pressure has no effect on the state of matter.

• Increasing temperature always leads to solidification.

• Temperature only affects gases, not solids or liquids.

What is sublimation? Give an example.

• Condensation of gas into liquid

• Evaporation of water into steam

• An example of sublimation is dry ice (solid carbon dioxide) turning into carbon dioxide gas.

• Melting of ice into water