States of Matter

At higher temperatures

• particles in an object have less energy
• particles in an object move faster
• a gas contracts

A gas

• has a definite shape but no definite volume
• has a definite volume but no definite shape
• has fast-moving particles

Tags

NGSS.5-PS1-1

NGSS.5-PS1-3

Freezing

• Solid to gas
• Liquid to solid
• Gas to solid
• Liquid to gas

Tags

NGSS.MS-PS1-4

What is happening when my ice cream changes from a solid to a liquid?

• freezing
• melting
• burning
• evaporation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Define a liquid.

• Indefinite shape, indefinite volume
• Definite shape, definite volume
• Found in stars
• Definite volume, indefinite shape

Tags

NGSS.MS-PS1-4

The state of matter that has no definite size or shape is

• Solid
• Liquid
• Gas

Tags

NGSS.MS-PS1-4

Particles of a liquid

• are tightly packed together and stay in a fixed position.
• have no viscosity.
• decrease in volume with increasing temperature.
• are free to move around one another but still touch.

Tags

NGSS.MS-PS1-4

Particles (molecules) in a ______________________ have more energy than the other states of matter.

• gas
• solid
• liquid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A chemical change

• doesn't really change much.
• creates a new substance
• is a change in the state of matter

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A physical change is...

• a change that doesn't change the identity
• a change that makes something new.
• a chemical reaction