Physical and Chemical Changes

Melting is an example of a ____________

• Chemical change

• Physical change

• evaporation

Physical change can be __________

• reversed

• permeant

• react

A ________ such as burning is __________.

• physical change, reversed

• chemical change, permanent

Is this change:

Boiling water to make steam

• reversable

• permanent

Is this change:

Toasting bread

• reversable

• permanent

Is this change:

Setting off a firework

• reversable

• permanent

A change in which atoms and molecules react and new substances are formed ___________

• physical reaction
• emotional reaction
• chemical reaction

Sent backwards or undo ___________

• reversed

• react

• permanent

Something that is long lasting or unchanging ____________

• temporary
• react

• permanent

When two or more substances combine to make a new substance or substances ....................................

• react

• permenant

• reversed