Physical and Chemical Properties

Front

What is a physical property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing the substance's identity.

Front

What is a chemical property?

Back

A chemical property is a characteristic of a substance that becomes evident during a chemical reaction, indicating the substance's ability to undergo a specific chemical change.

Front

What is the melting point of a substance?

Back

The melting point is the temperature at which a solid becomes a liquid at atmospheric pressure.

Front

Is melting butter for popcorn a physical or chemical change?

Back

Melting butter for popcorn is a physical change.

Front

What happens during a physical change?

Back

During a physical change, the form of a substance may change, but its chemical composition remains the same.

Front

What is an example of a physical change?

Back

An example of a physical change is separating sand from gravel.

Front

Is sharpening a pencil a physical or chemical change?

Back

Sharpening a pencil is a physical change.

Front

What are some examples of physical properties?

Back

Examples of physical properties include color, odor, melting point, boiling point, density, and solubility.

Front

What is the difference between a physical change and a chemical change?

Back

A physical change alters the form of a substance without changing its chemical composition, while a chemical change results in the formation of new substances with different properties.

Front

Can physical properties be measured?

Back

Yes, physical properties can be measured using various techniques, such as measuring temperature, mass, volume, and density.