Physical vs Chemical Changes

An gel ice pack getting cold after you put it in the freezer for an hour.

• Chemical Change
• Physical Change

a copper penny turning greenish after a few years.

• Chemical Change
• Physical Change

The smell your dog makes after eating to much people food.

• Chemical Change
• Physical Change

Baking a cake by mixing flour, sugar, chocolate powder, eggs, and milk, and then heating them in the oven.

• Chemical Change
• Physical Change

Which of the following is NOT an example of a physical change?

• crumpled paper
• pencil sharpening
• shrunken clothing
• sour milk

A change in which NEW substances are formed.

• Chemical change
• Physical change
• Casual change
• Formal change

Which of the following is NOT an example of chemical change?

• sour milk
• burning wood
• breaking a pencil
• rust

Which of the following IS a physical change?

• Getting a haircut
• Rusty metal
• sour milk
• A compound

Which of the following IS a chemical change

• using chalk
• water freezing
• slicing cheese
• digestion

Is a a rusting bicycle a chemical or physical change?

• chemcial
• physical