Physical vs Chemical Changes

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. Examples include cutting, freezing, and dissolving.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances. It involves a chemical reaction and changes the composition of the original substance. Examples include rusting, burning, and cooking.

Front

Is cutting a pizza into slices a physical or chemical change?

Back

Physical change.

Front

What happens to a banana when it rots? Is it a physical or chemical change?

Back

It is a chemical change.

Front

What type of change occurs when cooking an egg?

Back

Chemical change.

Front

Which of the following is a chemical change: freezing fruit juice, slicing a potato, boiling water, or copper metal turning green?

Back

Copper metal turning green.

Front

Is baking cookies a physical or chemical change?

Back

Chemical change.

Front

What are some indicators of a chemical change?

Back

Indicators include color change, temperature change, gas production, and the formation of a precipitate.

Front

What is an example of a physical change?

Back

Examples include melting ice, breaking glass, or dissolving sugar in water.

Front

What is an example of a chemical change?

Back

Examples include burning wood, baking bread, or rusting iron.