Ch. 2 Properties of Matter

21.0 g of pure silver have a volume of 2.0 cm³. What is the density of the silver?

• 42 g/cm³

• 10.5 g/cm³

• 0.1 g/cm³

• 23 g/cm³

Which of these is a physical change, not a chemical change?

• A wax candle burns

• An old can rusts

• An aluminum can melts

• A scrambled egg cooks

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NGSS.MS-PS1-4

Which of these is a chemical property, not a physical property?

• color

• mass

• ability to be shaped

• ability to burn

Which of these is a chemical change, not a physical change?

• a loaf of bread baked in the oven

• a piece of paper torn to shreds

• a ball of clay rolled out flat

• a bowl of ice cream melts into liquid

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NGSS.MS-PS1-2

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Which of the following is an example of freezing?

• melted wax becomes solid

• ice becomes liquid water

• ice becomes water vapor

• water vapor becomes water droplets

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NGSS.MS-PS1-4

The temperature at which a solid becomes a liquid is called

• melting point

• sublimation

• boiling point

• condensation

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The process of a solid changing directly to a gas is called

• freezing

• evaportion

• condesnation

• sublimation

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NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which of the following is an example of boiling?

• Heated water forms bubbles of water vapor inside it.

• Gas in a soft drink escapes as bubbles float upward

• A puddle of water dries up slowly in sunlight

• Water in a freezer becomes an ice cube

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NGSS.MS-PS1-4

When a gas changes into a liquid, the process is called

• condensation

• evaporation

• chemical change

• sublimation

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NGSS.MS-PS1-4

Iron is attracted to a magnet while tin is not. If a mixture of iron and tin pieces is placed near a magnet,

• the iron will separate from the tin

• the iron will become more dense than the tin

• the iron and tin will dissolve

• the tine will become more dense than the iron

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NGSS.MS-PS2-3

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