Ice melting is:

When hydrochloric acid and enzymes break down food molecules in the stomach, this is:

Burning paper is:

Baking a cake is:

Slicing bread is:

Dissolving sugar is:

Rusting metal is:

Crushing a can is:

Light from a glow stick is:

Water condensing is:

Evaporating water is:

When lemon juice is added to milk and a solid forms, this is:

Roasting a marshmallow is:

Which of these is NOT a characteristic of a physical change?

A physical change is best characterized by:

When teeth tear and crush food in the mouth, this is:

When saliva is mixed with food to make it softer, this is:

When hydrochloric acid and enzymes break down food molecules in the stomach, this is: