Identify the photo as either a chemical or physical change

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify the photo as either a chemical or physical change

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Identify the photo as either a chemical or physical change

• chemical change

• physical change

Tags

NGSS.MS-PS1-2

Which of the following could you do to a balled up piece of paper to cause a chemical change?

• burn it

• tear it

• write on it

• flatten it

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which of the following changes could be associated with

either a chemical change OR a physical change?

• the change cannot be reversed

• bending of metal

• new substances formed

• change in color

Tags

NGSS.MS-PS1-2

Which of these involves only a physical change?

• baking a cake

• a bicycle rusts

• adding sugar to tea

• a banana turns brown

Physical changes are often a simple ____________ change,

such as water evaporating.

Tags

NGSS.MS-PS1-4

Chemical changes involve the formation of __________ products such as gas, light, or heat.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Chemical changes are not easily __________.

Josh decided to mix some vinegar with baking soda. He knew that a reaction occurred because he made careful observations. He noted that the mixture started to foam up and bubble, and it was white in color. How did Josh know that a chemical reaction occurred?

He was sure a reaction occurred because of

• the color of the mixture

• the smell of the vinegar

• the volume of the mixture

• the formation of a gas

Tags

NGSS.MS-PS1-2