Unit 3: Properties of Matter Flashcard

Front

What is the volume of an object?

Back

The amount of space that an object occupies, typically measured in milliliters (mL) or cubic centimeters (cm³).

Front

How do you calculate the volume of an irregular object using water displacement?

Back

By measuring the change in water level before and after the object is submerged. The difference in water level is the volume of the object.

Front

What is a physical change?

Back

A change that affects one or more physical properties of a substance without altering its chemical composition, such as dissolving salt in water.

Front

What is a chemical change?

Back

A change that results in the formation of new chemical substances, such as rust forming on iron.

Front

What is a mixture?

Back

A combination of two or more substances where each retains its own properties, such as salt water.

Front

What is a pure substance?

Back

A material made up of only one type of particle, such as distilled water or pure gold.

Front

What is a physical property?

Back

A characteristic of a substance that can be observed or measured without changing its identity, such as color, mass, and volume.

Front

What is a chemical property?

Back

A characteristic of a substance that describes its ability to change into different substances, such as flammability or reactivity.

Front

What is density?

Back

The mass of a substance divided by its volume, often expressed in grams per cubic centimeter (g/cm³).

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force exerted by gravity on that mass.