Physical and Chemical Changes

Is this a physical or chemical change?

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the definition of chemical change?

• any change that results in the formation of one (or more) new chemical substance(s).

• changing of only the appearance of the object

• matter cannot be created or destroyed, only change form

• changes affecting the form of a chemical substance, but not its chemical composition.

Using bleach to get rid of a stain on a shirt is a _____ change

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

Hydrochloric acid reacts with potassium hydroxide to produce a salt, water,and heat.

• Chemical Change
• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Sublimation is

• when solid turns into gas
• when gas turns into plasma
• when liquid turns into gas
• when gas turns into solid

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Melting butter for popcorn is a

• chemical change

• physical change

Tags

NGSS.MS-PS3-5

The formation of a solid when two liquids combine is called?

• Solidification

• Freezing

• Precipitate

• Solubility

Tags

NGSS.MS-PS1-2

A physical change is

• a change where the characteristics do not change the substance

• a change where the characteristics do change the substance

• a change where the chemistry changes

Is cutting an apple into slices an example of a physical change or a chemical change?

• Physical Change
• Chemical Change

Which of the following are examples of a physical change?

• cutting your hair

• burning paper

• melting butter

• dissolving sugar in water