Chemical vs Physical Changes

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 change that affects one or more physical properties of a substance without altering its chemical composition.

Front

Is tarnishing silverware a physical or chemical change?

Back

Chemical change.

Front

What happens to the mass of a substance during a physical change?

Back

The mass remains the same.

Front

What is an example of a physical change?

Back

Breaking a cracker into pieces.

Front

What is an example of a chemical change?

Back

Rust forming on iron.

Front

Does a change in color indicate a physical or chemical change?

Back

It can indicate a chemical change, but not always.

Front

Is melting chocolate a physical or chemical change?

Back

Physical change.

Front

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

Back

A physical change does not create new substances, while a chemical change does.

Front

Is sharpening a pencil a physical or chemical change?

Back

Physical change.