States and Classify

How is a gas defined?

• no shape, no volume
• Definite shape, definite volume
• Found in stars
• Definite volume, no shape

Molecules are closest together in a 

• Solid
• Liquid
• Gas
• plasma

Tags

NGSS.HS-PS1-3

At higher temperatures

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

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

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

The speed of the molecules determines the _____.

• volume
• density
• pressure
• temperature

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

The _______ is a measure of the average speed of the particles in a substance.

• temperature

• density

• volume

• mass

Tags

NGSS.MS-PS1-4

The amount of space that matter fills is its ___________

• volume

• mass

• density

• weight

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