Water freezing and becoming ice is an example of what type of change?

• A. Nuclear change
• B. Physical change
• C. Chemical change
• D. Biological change

Answer: (B)

Verified step by step guidance

1. Understand the difference between physical and chemical changes: Physical changes affect the form of a substance but not its chemical composition, while chemical changes result in the formation of new substances.
2. Recognize that when water freezes to become ice, it changes from a liquid to a solid state, but the molecular structure of H\_2O remains the same.
3. Since the chemical identity of water does not change during freezing, this process does not involve breaking or forming chemical bonds.
4. Therefore, freezing water is a change in physical state, which classifies it as a physical change.
5. Confirm that nuclear changes involve changes in the nucleus of atoms, and biological changes involve living organisms, neither of which apply here.