Science Changes in State

Particles of which of the following have the greatest thermal energy?

• A Liquid

• A Cyrstalline Solid

• A Gas

• An Amorphous Solid

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following describes the process of freezing?

• Freezing occurs when the particles of a solid vibrate so fast that they break free.

• Freezing occurs when the temperature drops enough a gas turns into a solid.

• Freezing occurs when the particles in a liquid slow down and take fixed positions.

• Freezing occurs when the temperature of a substance drops to 0 degrees Celsius.

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

The temperature at which a liquid turns to a gas is

• called the freezing point

• called the boiling point

• 100 degrees Celsius

• the same for an amorphous or a crystalline solid

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NGSS.MS-PS1-4

Adding heat increases thermal energy

• true

• false

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NGSS.MS-PS1-4

Temperature is the measure of

• mass

• volume

• change in thermal energy

• density

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NGSS.MS-PS3-4

When a solid reaches the temperatures of its ___, it can become a liquid.

• melting point
• freezing point
• boiling point
• density

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NGSS.MS-PS1-4

When a liquid reaches the temperatures of its ___, it can become a gas.

• melting point
• freezing point
• boiling point
• density

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NGSS.MS-PS1-4

Melting Point of water is

• 100 degrees Celsius
• 0 degrees Celsius
• 0 degrees Fahrenheit

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NGSS.MS-PS1-4

When does condensation happen?

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

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NGSS.MS-PS1-4

When water beads on the outside of a cold glass of water.

• vaperization
• condensation
• melting
• freezing 

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NGSS.MS-PS1-4