Freezing

Freezing is the process in which a liquid turns into a solid when it is cooled to its freezing point. This occurs when the molecules in the liquid slow down and come together to form a solid structure. The freezing point of a substance is the temperature at which it changes from a liquid to a solid.

Factors that Affect Freezing

Several factors can affect the freezing of a substance, including:

• Temperature: Lower temperatures cause molecules to slow down and come together to form a solid.
• Pressure: High pressure can lower the freezing point of a substance, while low pressure can raise it.
• Impurities: The presence of impurities in a substance can lower its freezing point.

Examples of Freezing

Common examples of freezing include:

• Water freezing into ice at 0 degrees Celsius (32 degrees Fahrenheit).
• Molten lava from a volcano cooling and solidifying into rock.
• Butter solidifying in the refrigerator.

Study Guide

To study the concept of freezing, consider the following questions:

1. What is freezing and how does it occur?
2. What factors can affect the freezing of a substance?
3. Can you provide examples of freezing in everyday life?
4. How does the freezing of water affect the Earth's climate?

Additionally, you can conduct experiments to observe the freezing process, such as freezing water at different temperatures or pressures, or adding impurities to water to see how it affects the freezing point.

Understanding the concept of freezing is important in various scientific fields, including chemistry, physics, and environmental science.