POST-TEST PS 1-2: Matter and its Interactions

Reactivity (bubbling, fizzing) is a --- property.

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Physical properties are

• properties that can be observed without changing the identity of the substance
• properties that describe how a substance changes into a completely different substance
• properties that we can only observe with our eyes
• properties that we need special tools to observe

Which is an example of a chemical change?

• melting ice to make water
• baking cake batter to make a cake
• putting cheese on bread to make a cheese sandwich
• cutting an orange into slices for a snack

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Burning a marshmallow over a campfire

• Physical
• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

______________________ can only be recognized when substances react or do not react chemically with one another.

• Physical properties

• Chemical properties

• Flammable properties

• Colorful properties

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A characteristic that can be determined without changing the chemical identity of a substance is a ________ property.

• Chemical

• Physical

• Intensive

• Material

Which of the following is an example of a chemical property?

• Melting point
• Density
• Color
• Ability to react with acid

What is the definition of a physical change?

• Alteration in the physical state of matter without changing its chemical composition
• Inherent characteristics that help us identify and describe matter
• Characteristics that describe how a substance behaves under different conditions
• Transformation that results in the creation of new substances

What is the definition of chemical changes?

• changes that lead to the formation of new substances with different chemical properties
• characteristics that describe how a substance interacts with other substances
• changes that describe how a substance behaves under different conditions
• changes that alter the form or appearance of a substance, but not its chemical composition

Tags

NGSS.MS-PS1-2

What happens to the fundamental particles during a physical change?

• They remain the same
• They break and form new chemical bonds
• They become completely different substances
• They disappear