Physical & Chemical Properties & Changes

Which of the following can be observed without changing the identity of an object?  

• physical property
• chemical property 

Which of the following cannot be observed without changing the identity of an object? 

• physical property
• chemical property

Which of the following is not a physical property?

• luster
• texture
• reactivity
• density

Which of the following chemical properties explains why an apple turns brown once it is sliced?

• flammability
• reactivity

Tags

NGSS.MS-PS1-2

A ______ change does not produce a new substance.

• physical
• chemical

Tags

NGSS.MS-PS1-4

A ______ change does produce one more more new substances.

• physical
• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is not an example of a physical change?

• ripped paper
• soured milk
• cut meat
• bent wire 

Which of the following is not an example of a chemical change?

• egg frying on a pan
• rust on a bicycle
• bleaching hair
• chocolate melting 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Sally noticed her new sweater has a tear in it.  What type of change happened to Sally's sweater?  

• physical change
• chemical change 

Sally noticed that her cheese in the refrigerator had mold on it.  What type of change happened to Sally's cheese?

• physical change
• chemical change 

Tags

NGSS.MS-PS1-2