Module 2 Exam Matter: Properties and Changes (7th)

Breaking a chemical bond _____________.

• absorbs energy from the surroundings

• creates energy that did not previously exist

• releases energy into the surroundings

• uses up energy that then no longer exists

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NGSS.MS-PS3-4

NGSS.MS-PS3-5

An exothermic reaction ______________

• absorbs thermal energy

• needs energy to be added constantly in order to continue

• needs more energy to break the chemical bonds than is released when products form

• releases thermal energy

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NGSS.MS-PS1-4

NGSS.MS-PS3-5

A characteristic of matter that allows it to change to something new is a

• chemical change

• chemical property

• physical change

• physical property

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NGSS.MS-PS1-2

When a peeled banana turns black, it is a

• change of state

• chemical change

• physical change

• thermal change

The ability to react with oxygen is a physical property.

• True

• False

The melting point of silver is a

• chemical change

• chemical property

• physical property

• physical change

An example of a chemical property is

• ability to be attracted by a magnet

• ability to react with acid

• boiling point

• solubility

Which of the following is NOT a physical property of matter?

• density

• flammability

• melting point

• solubility

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NGSS.MS-PS1-4

The ability of a pond to freeze over in winter is a

• chemical change

• chemical property

• physical change

• physical property

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NGSS.MS-PS1-4

When a log burns in a fire,

• a physical change has occurred

• mass is gained

• mass is lost

• new substances are formed

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NGSS.MS-PS1-2

NGSS.MS-PS1-5