Here’s the classification of each response as either a chemical change or a physical change:
Chemical Change:
- After pouring baking soda into vinegar, it begins to fizz.
- An iron nail slowly rusts and turns reddish-brown.
- Lighting a match.
Physical Change:
- Putting two cubes of ice into a soda.
- Painting the walls of a dollhouse red.
- Breaking a matchstick.
Summary:
- Chemical Changes: Fizzing reaction of baking soda and vinegar, rusting of iron, lighting a match.
- Physical Changes: Adding ice to soda, painting, breaking a matchstick.