Savvas S3 T6 L1 Describing & Classifying Matter

Front

What is a homogeneous mixture?

Back

A homogeneous mixture is a mixture in which the composition is uniform throughout. Examples include saltwater and air.

Front

What is a heterogeneous mixture?

Back

A heterogeneous mixture is a mixture in which the composition is not uniform throughout. Examples include salad and sand.

Front

What is matter?

Back

Matter is anything that has mass and takes up space.

Front

What is an element?

Back

An element is a pure substance that cannot be broken down into simpler substances by chemical means. Examples include oxygen (O) and chlorine (Cl).

Front

What is a compound?

Back

A compound is a substance formed when two or more elements are chemically bonded together. An example is water (H2O).

Front

Do the properties of elements change when they form compounds?

Back

Yes, the properties of elements can change when they combine to form compounds.

Front

What is the chemical formula for water?

Back

The chemical formula for water is H2O.

Front

Is air a mixture, element, or compound?

Back

Air is a mixture, primarily of nitrogen and oxygen.

Front

What is the difference between a mixture and a compound?

Back

A mixture is a combination of two or more substances that retain their individual properties, while a compound is a substance formed from two or more elements that are chemically bonded.

Front

What is an example of a compound?

Back

An example of a compound is carbon dioxide (CO2).