Matter Matters

Front

What is a physical property of matter?

Back

A physical property is a characteristic of matter that can be observed or measured without changing the substance's chemical identity. Examples include color, odor, density, and melting point.

Front

Is cutting an orange a physical change?

Back

True, cutting an orange is a physical change because it alters the appearance of the orange without changing its chemical composition.

Front

What is an example of a physical change?

Back

Chopping wood is an example of a physical change, as it changes the size and shape of the wood but not its chemical structure.

Front

What does it mean to change the way matter looks without creating new matter?

Back

It refers to a physical change, where the form or appearance of a substance changes, but its chemical composition remains the same.

Front

What happens to water when it freezes?

Back

When water freezes, it undergoes a physical change from liquid to solid (ice) without changing its chemical composition (H2O).

Front

Define matter.

Back

Matter is anything that has mass and occupies space. It includes solids, liquids, and gases.

Front

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

Back

A physical change affects only the form of a substance, while a chemical change results in the formation of new substances with different chemical properties.

Front

Can physical changes be reversed?

Back

Many physical changes can be reversed, such as melting and freezing, but some may not be easily reversible, like breaking a glass.

Front

What are some examples of physical properties?

Back

Examples of physical properties include color, density, boiling point, melting point, and solubility.

Front

What is an example of a chemical change?

Back

An example of a chemical change is rusting of iron, where the iron reacts with oxygen to form a new substance (iron oxide).