Chemistry Quiz

Paper burning is a __________________ change. 

• physical
• chemical

Tags

NGSS.MS-PS1-2

Dry ice (solid carbon dioxide) turning into carbon dioxide gas is a 

• physical change
• chemical change

Tags

NGSS.MS-PS1-4

Which of these phrases describes the results of a chemical change? 

• charred wood, ash, and smoke 
• salt dissolving in water 
• gold nuggets melting 
• a dented car door

Tags

NGSS.MS-PS1-2

An iron nail rusting is a _______________ change. The ________________ property of reactivity explains the iron’s ability to form a new substance. 

• physical, physical            
• physical, chemical 
• chemical, chemical 
• chemical, physical 

Tags

NGSS.MS-PS1-2

Dissolving Kool-Aid into water is an example of a 

• physical change              
• chemical change

Tags

NGSS.MS-PS1-2

Which example below is a chemical reaction?

• ice melting

• water boiling

• lighting a match

• grape juice freezing

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The following changes (melting wax, evaporating gasoline, freezing water) are all examples of

• nuclear changes.
• chemical changes.
• physical changes.
• a.  energy consumption.

Tags

NGSS.MS-PS1-4

Which of these BEST describes a physical change?

• fireworks explode
• a log in the campfire turns into ashes
• rust forms on your bicycle
• the amount of water in a pan decreases

The density of a piece of gold jewelry is often used to determine its purity. Density is what kind of property?

• chemical
• colligative
• extrinsic
• physical

During Mr. Nye's science class, students were expected to identify various substances using physical properties they could easily measure. Mr. Nye gave each of the five groups a green, metal cube and asked them to identify what the cube was made of. Matt's cube, after 5 trials, had an average density of 7.40 g/cm3 . His group's cube was made of

• aluminum
• gold
• nickel
• zinc

Tags

NGSS.MS-PS1-2