Physical and chemical change

Properties that describe how a substance looks, feels, state of matter, etc. are?

• Chemical properties
• Physical properties

What does a chemical change result in?

• A phase change in the substance (ex. liquid to solid)
• A change in texture of the substance.
• A change in the way atoms are bonded to each other.
• A change in the way atoms are arranged in space.

Which of the following is an example of a physical change?

• Baking a birthday cake
• A glass falling and shattering on the floor
• Burning a piece of paper
• Baking soda and vinegar mixing together

Which type of change is most often easily reversed?

• Chemical
• Physical
• Both

Identify what’s happening in the picture as a chemical or physical change.

• Chemical
• Physical
• Both

Drying wet hair is an example of a __________ change.

• Chemical
• Physical
• Both

Why is the below picture an example of a physical change?

• The pencil can no longer be used.
• The pencil is a different size.
• The materials making up the pencil did not change.
• The materials making up the pencil are different.

A statue damaged by acid rain is a chemical change.

• True
• False

When iron is exposed to water vapor and air, it rusts. This is an example of a ________ change.

• Chemical
• Physical
• Both

Does the following represent a chemical or physical change?

• Chemical
• Physical
• Both