Physical and Chemical Change Flashcard

Front

What is a chemical change?

Back

A chemical change is a process where substances combine or break apart to form new substances with different properties.

Front

What is a physical change?

Back

A physical change is a process that alters the form or appearance of a substance but does not change its chemical composition.

Front

Example of a chemical change?

Back

Burning wood is an example of a chemical change.

Front

Example of a physical change?

Back

Melting ice cream is an example of a physical change.

Front

What happens to the molecules during a chemical change?

Back

During a chemical change, the bonds between molecules are broken and new bonds are formed, resulting in new substances.

Front

What happens to the molecules during a physical change?

Back

During a physical change, the arrangement of molecules may change, but their chemical structure remains the same.

Front

Is boiling water a physical or chemical change?

Back

Boiling water is a physical change.

Front

Is rusting of iron a physical or chemical change?

Back

Rusting of iron is a chemical change.

Front

What is an example of a reversible physical change?

Back

Freezing and melting of water is an example of a reversible physical change.

Front

What is an example of an irreversible chemical change?

Back

Baking a cake is an example of an irreversible chemical change.