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

A gas

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

Tags

NGSS.MS-PS1-4

Which state of matter has tightly packed molecules?

• solid
• liquid
• gas

Tags

NGSS.5-PS1-1

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

The slower the particles in a substance move,

• the colder it is.
• the warmer it is.
• the more energy it has.
• the less energy it has.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

The sun shines down on this family as the play on the beach.

• conduction
• convection
• radiation

Tags

NGSS.MS-ESS2-6

NGSS.MS-PS3-3

Walking on the warm sand sand with your bare feet.

• conduction
• convection
• radiation

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Warm air rises and the cool air sinks.

• conduction
• convection
• radiation

Tags

NGSS.MS-ESS2-5

NGSS.MS-ESS2-6

A group of friends gather around a fire to stay warm.

• conduction
• convection
• radiation

Tags

NGSS.4-PS3-2