States of Matter and Phase Changes

Front

What are the three main states of matter?

Back

Solid, Liquid, Gas.

Tags

NGSS.MS-PS1-4

Front

What happens to the arrangement of particles when a solid melts?

Back

The particles gain energy and move apart, changing from a fixed arrangement to a more fluid arrangement.

Tags

NGSS.MS-PS1-4

Front

What is evaporation?

Back

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

Tags

NGSS.MS-PS1-4

Front

What is condensation?

Back

Condensation is the process where gas turns into liquid when it cools down.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Front

What is the definition of a phase change?

Back

A phase change is a transition of matter from one state to another, such as solid to liquid or liquid to gas.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is the effect of temperature on the state of matter?

Back

Increasing temperature generally causes solids to melt into liquids and liquids to evaporate into gases.

Tags

NGSS.MS-PS1-4

Front

What is density?

Back

Density is the mass per unit volume of a substance, which determines whether it will float or sink in a fluid.

Front

What is the kinetic molecular theory?

Back

The kinetic molecular theory states that matter is made up of tiny particles that are in constant motion.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Front

What happens to the energy of particles during freezing?

Back

During freezing, particles lose energy and move closer together, forming a solid.

Tags

NGSS.MS-PS1-4

Front

What is sublimation?

Back

Sublimation is the process where a solid turns directly into gas without becoming a liquid first.

Tags

NGSS.MS-PS1-4