Chemical 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 evidence of a chemical change?

Back

Evidence of a chemical change includes unexpected color change, gas production, light production, and formation of a precipitate.

Front

Which of the following is NOT evidence of a chemical change?

Back

Breaking is NOT evidence of a chemical change.

Front

What indicates a chemical change?

Back

A temperature change indicates a chemical change.

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 making a paper airplane a physical or chemical change?

Back

Making a paper airplane is a physical change.

Front

Is melting ice a chemical or physical change?

Back

Melting ice is a physical change.

Front

What happens during a chemical change?

Back

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

Front

What is an example of a chemical change?

Back

An example of a chemical change is burning wood, which produces ash and smoke.

Front

What is an example of a physical change?

Back

An example of a physical change is dissolving salt in water.