2. States of Matter & Changes in State

At higher temperatures

• particles in an object move slower

• particles in an object move faster

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NGSS.MS-PS1-4

In which state of matter are particles packed very close together, with little to no space in between them?

• solid

• liquid

• gas

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NGSS.MS-PS1-4

Which state of matter is represented by the particles in this image?

• Solid

• Liquid

• Gas

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NGSS.MS-PS1-4

When thermal energy is decreased in a gas, what change in state is happening?

• Melting

• Freezing

• Evaporation

• Condensation

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NGSS.MS-PS1-4

When thermal energy is increased in a liquid and evaporation occurs, what state of matter does the liquid change into?

• Solid

• Gas

Tags

NGSS.MS-PS1-4

When thermal energy is decreased in a liquid and freezing occurs, what state of matter does the liquid change into?

• Gas

• Solid

Tags

NGSS.MS-PS1-4

What happens to the movement of the particles in a substance when the thermal energy is decreased?

• Speed Up

• Slow Down

Tags

NGSS.MS-PS1-4

What happens to the movement of the particles in a substance when the thermal energy is increased?

• Speed Up

• Slow Down

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What happens to the arrangement of particles as thermal energy is removed from a substance?

• The particles get farther apart.

• The particles get closer together.

Tags

NGSS.MS-PS1-4

A large piece of ice is placed on the sidewalk on a warm day. What will happen to the ice? 

• It will melt to form liquid water
• It will melt to form water vapor
• It will not change at all.
• It will freeze to form liquid water. 

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4