Thermal Energy and Matter

Front

What is the boiling point of a substance?

Back

The boiling point is the temperature at which a substance changes from a liquid to a gas.

Tags

NGSS.MS-PS1-4

Front

What is the freezing point of a substance?

Back

The freezing point is the temperature at which a substance changes from a liquid to a solid.

Tags

NGSS.MS-PS1-4

Front

Does thermal expansion involve a change of state?

Back

No, thermal expansion involves an increase in volume due to temperature increase without changing the state of matter.

Front

What is sublimation?

Back

Sublimation is the process where a solid changes directly into a gas without passing through the liquid state.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the relationship between Celsius and Fahrenheit?

Back

The freezing point of water is 0°C (32°F) and the boiling point is 100°C (212°F).

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to temperature.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

NGSS.MS-PS3-4

Front

What happens to matter during a phase change?

Back

During a phase change, the arrangement and energy of particles change, but the substance remains the same.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the significance of absolute zero?

Back

Absolute zero is the theoretical temperature at which all particle motion stops, defined as 0 Kelvin or -273.15°C.

Tags

NGSS.MS-PS1-4

Front

What is the process of condensation?

Back

Condensation is the process where a gas changes into a liquid when cooled.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Front

What is the process of evaporation?

Back

Evaporation is the process where a liquid changes into a gas at temperatures below its boiling point.

Tags

NGSS.MS-PS1-4