States of Matter and Phase Changes

Front

What happens to molecules in a solid when heat is taken away?

Back

The molecules slow down and remain in the solid state, becoming cooler.

Front

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

Back

Evaporation.

Front

Describe the characteristics of particles in a solid.

Back

Particles are packed closely together, vibrate in place, and have strong molecular attraction.

Front

How do the particles in glass behave?

Back

The particles of the glass are always vibrating.

Front

What is the state of matter where molecules only vibrate in place?

Back

Solid.

Front

What is the state of matter with loosely packed particles that can flow?

Back

Liquid.

Front

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

Back

Condensation.

Front

What is sublimation?

Back

The process where a solid changes directly to a gas without becoming a liquid.

Front

What is the state of matter where particles are far apart and move freely?

Back

Gas.

Front

What happens to the energy of particles when a substance freezes?

Back

The energy decreases, causing the particles to move closer together.