NGSS.MS-PS1-4

In this experiment, the WARM red dye and the COLD blue dye was placed in the water at the same time. The warm red dye rose to the top while the cold blue dye sank to the bottom.

• conduction
• convection
• radiation

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NGSS.MS-PS1-4

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

• gas
• solid
• liquid

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NGSS.MS-PS1-4

These molecules represent which state of matter?

• Solid
• Liquid
• Gas

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NGSS.MS-PS1-4

The temperature of a substance increases as___.

• the substance expands
• the average kinetic energy of its particles increases
• the substance's volume increases
• the substance's mass increases

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NGSS.MS-PS1-4

You decide to blow bubbles (soapy WATER) outside on a snowy day. Which answer BEST explains what has happened to the molecule ARRANGEMENT of the WATER?

• The WATER molecule ARRANGEMENT has become CLOSER.

• The WATER molecule ARRANGEMENT has become FARTHER APART, forming rings.

• The WATER molecule ARRANGEMENT has become CLOSER, forming squares.

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NGSS.MS-PS1-4

After a chemical reaction, the beaker feels cold to the touch. This is likely a ____________ reaction.

• negative

• positive

• endothermic

• exothermic

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NGSS.MS-PS1-4

Which of these changes of state would involve water absorbing energy?

• condensation

• deposition

• evaporation

• freezing

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NGSS.MS-PS1-4

Molecules move at the same speed no matter what the temperature.

• true

• false

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NGSS.MS-PS1-4

Melting point is...

• The temperature at which a solid can change to a liquid

• The temperature at which a solid can change to a gas

• The temperature at which a gas can change to a liquid

• The temperature at which a liquid can change to a solid

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NGSS.MS-PS1-4

The boiling point of water is...

• 32 degrees Celsius

• 109 degrees Celsius

• 100 degrees Celsius

• -29 degrees Celsius

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NGSS.MS-PS1-4