Standard 5 Assessment

Which property would you measure to determine if a substance is flammable?

• Odor

• Density

• Solubility

• Flammability

Which property is most useful in identifying a substance?

• Mass

• Volume

• Density

• Temperature

A student mixes two clear liquids and observes the formation of a solid. What type of change has likely occurred?

• Physical change

• Chemical change

• No change

• Phase change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A student observes that a substance has a strong odor before and after a reaction. What can be inferred about the chemical reaction?

• A new substance with a different odor was formed

• No chemical reaction occurred

• The original substance was not involved in the reaction

• The odor is not a reliable indicator of a chemical reaction

Tags

NGSS.MS-PS1-2

What happens to the boiling point of a substance when it undergoes a chemical reaction?

• It always increases

• It always decreases

• It may change depending on the reaction

• It remains the same

Tags

NGSS.MS-PS1-2

Which of the following is a characteristic property of a substance?

• Color

• Density

• Shape

• Size

If a substance dissolves in water, what property is being demonstrated?

• Flammability

• Solubility

• Density

• Melting point

A student observes that a substance has a different density after a reaction. What does this suggest?

• The substance has undergone a physical change

• The substance has undergone a chemical change

• The density measurement was incorrect

• The substance has not changed

Tags

NGSS.MS-PS1-2

What is the term for the temperature at which a substance changes from a solid to a liquid?

• Boiling point

• Melting point

• Freezing point

• Sublimation point

Tags

NGSS.MS-PS1-4

Which property is most likely to change during a chemical reaction?

• Mass

• Volume

• Density

• Color

Tags

NGSS.MS-PS1-2