Physical and Chemical Change

Ice Melting

• Chemical Change

• Physical Change

Which clue in the picture tells you that it is a chemical change?

• Color change.

• Formation of bubbles.

• Release of light and energy.

Tags

NGSS.MS-PS1-2

Dissolving salt in water.

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

Tearing Paper

• Chemical Change

• Physical Change

If you burn paper, the ​ (a)   in the paper change to molecules of ash and smoke. This is a ​ (b)   change.

• chemical

• molecules

• physical

• liquid

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Baking a cake is a (a)   ​ change.

• chemical

• physical

• emotional

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which is a chemical change and which is a physical change?

b

a

Photosynthesis

Dissolving

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Select all of the following examples that are chemical changes​ ​ (a)   ​ (b)   ​ (c)  

• Breaking a piggy bank

• fireworks exploding

• getting a haircut

• melting icicle

• hammering metal

• mixing baking soda and vinegar

• a rusty nail

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Formation of a precipitate.

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Explosion

• Chemical Change

• Physical Change

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5