Physical or 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.

Front

What is a chemical change?

Back

A chemical change is a change that results in the formation of new chemical substances, involving a rearrangement of atoms.

Front

Is melting ice a physical or chemical change?

Back

Melting ice is a physical change.

Front

Is burning wood a physical or chemical change?

Back

Burning wood is a chemical change.

Front

What is an example of a chemical change?

Back

Examples of chemical changes include rusting iron, baking a cake, and spoiling food.

Front

What is an example of a physical change?

Back

Examples of physical changes include melting ice, boiling water, and dissolving sugar in water.

Front

What state of matter has a definite shape and volume?

Back

Solid.

Front

What state of matter has a definite volume but no definite shape?

Back

Liquid.

Front

What state of matter has no definite shape or volume?

Back

Gas.

Front

What happens to the particles in a solid when it is heated?

Back

The particles in a solid gain energy and vibrate more, which can lead to a phase change to a liquid.