When does a physical change occur?

• when molecules combine to form a compound

• when a new element is created

• when the size, shape or state of matter changes

• when elements combine to form a molecule

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Which type of change CANNOT be reversed?

• physical change

• chemical change

Tags

NGSS.MS-PS1-5

Stepping on a bag of potatoe chips would cause which type of change?

• mechanical

• chemical

• thermal

• physical

Which of the following is the BEST clue that a chemical change has occurred?

• the substance is smaller after the change

• the substance forms bubbles when the change occurrs

• the substance looks the same as it did before the change

Tags

NGSS.MS-PS1-2

In a chemical change, new products are formed.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Physical and chemical changes can NEVER cause a change in color.

• True

• False

Tags

NGSS.MS-PS1-2

Most of the time, physical changes can be reversed.

• True

• False

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

• 
• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is an example of a physical change?

• 
• 
• 

In physical change, no new products are formed.

• True

• False