The Changes in the States of Matter

What three states does matter exist in?

• solid, liquid, gas
• vapor
• crystal
• plasma

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Changes in matter occur when?

• When an object is moved from one place to another.
• When the size of an object increases.
• When matter is heated or cooled.

• When the color of an object changes.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

When solid matter is heated and becomes a liquid, it is called

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NGSS.MS-PS1-4

When liquid matter is heated and becomes a gas, it is called​ (a)  

• vaporization
• condensation
• sublimation
• precipitation

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NGSS.MS-PS1-4

If matter is cooled instead of heated will its state change?

• Yes, cooling matter can change its state.
• Cooling matter has no effect on its state.
• Matter can only change state when heated.
• Cooling matter always results in a solid state.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Cooling a gas will turn it into a liquid. This is known as ​ (a)  

• condensation
• evaporation
• sublimation
• ionization

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NGSS.MS-PS1-4

When liquid matter is frozen it becomes a solid, this is known as ​ (a)  

• solidification
• evaporation
• condensation
• sublimation

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NGSS.MS-PS1-4

When a solid becomes a liquid it is called

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NGSS.MS-PS1-4

As the temperature of a solid ​ (a)   , the particles of matter move more ​ (b)  

• rises
• falls
• remains constant
• evaporates
• freely

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Liquid turns into ​ (a)   ​ when heated.

• gas
• solid
• ice
• steam

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NGSS.MS-PS1-4