Chemical and Physical Reactions

Is this an example of a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

Is this an example of a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

A physical change...

• changes the physical properties of an object, but does not create a new substance.

• creates a new substance and cannot be undone.

Is this an example of a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is this an example of a physical or chemical change?

• physical

• chemical

Is this an example of a physical or chemical change?

• physical

• chemical

Tags

NGSS.MS-PS2-2

Is this an example of a physical or chemical change?

• physical

• change

The difference between a Physical change and a Chemical change is…

• Physical change is only a change to the outside appearance.

• Chemical change is when matter is changed into something new.

• Atoms are rearranged in chemical changes & not in physical.

• All are correct.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-4

A scientist performed four investigations using eight different liquids. In each investigation, the scientist combined two of the liquids and recorded observations. In which investigation is it LEAST likely that the liquids reacted chemically?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-2

• One of the original compounds came out of solution

• The solutions reacted chemically

• Some of the water froze into ice crystals

• Rapid evaporation of water occured, leaving a solid

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

NGSS.MS-PS3-4