Amplify Critical Juncture Phase Change

Front

What is a phase change?

Back

A phase change is a transition of matter from one state (solid, liquid, gas) to another due to the addition or removal of energy.

Front

What happens to molecules during a phase change from gas to liquid?

Back

The molecules lose energy, move closer together, and begin to interact more strongly.

Front

What is the relationship between energy and molecular movement during a phase change?

Back

Adding energy increases molecular movement, while removing energy decreases it.

Front

Define 'attraction between molecules'.

Back

Attraction between molecules refers to the forces that hold molecules together, which can vary in strength depending on the substance.

Front

What occurs when a substance changes from a liquid to a gas?

Back

The molecules gain energy, move faster, and overcome the attractions holding them together.

Front

What is the significance of temperature in phase changes?

Back

Temperature affects the energy of molecules; higher temperatures generally lead to phase changes from solid to liquid to gas.

Front

How does the strength of molecular attraction affect phase changes?

Back

Stronger attractions require more energy to overcome, making it less likely for a substance to change phase.

Front

What is the difference between a solid and a liquid in terms of molecular movement?

Back

In solids, molecules vibrate in place; in liquids, they move around each other.

Front

What happens to the molecules of a substance when energy is removed?

Back

The molecules lose energy, slow down, and may come closer together, potentially leading to a phase change.

Front

What is an example of a substance that changes from liquid to gas?

Back

Water changes from liquid to gas (steam) when heated.