Unit 4 Structure of Matter & Its Properties (Chem I)

At higher temperatures

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

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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

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NGSS.5-PS1-1

NGSS.5-PS1-3

Which state of matter has a definite shape?

• solid
• liquid
• gas

Define a liquid.

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

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NGSS.HS-ESS2-5

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

• gas
• solid
• liquid

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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.

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NGSS.MS-PS1-4

What is condensation?

• gas to solid
• gas to liquid
• liquid to solid 
• solid to liquid 

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NGSS.MS-ESS2-4

NGSS.MS-PS1-4

The speed of the molecules determines the _____.

• volume
• density
• pressure
• temperature

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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.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

When the temperature of matter increases the particles...

• speed up and move closer
• speed up and move farther apart
• slow down and move closer together
• slow down and move farther apart

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4