Lesson 0.8: Unit Review - Matter & Measurement

Front

What is Matter?

Back

Anything with mass which takes up space.

Front

What is mass?

Back

The amount of matter in something.

Front

What is a pure substance?

Back

A substance with a uniform composition – every particle that makes up a pure substance is identical. Pure substances have properties that are the same as each other. For example: all sulfur is yellow and solid at room temperature.

Front

What are the two types of pure substances?

Back

Elements, Compounds

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How are elements and compounds different from each other?

Back

Compounds can be chemically broken down into simpler compounds or into elements.

Front

What are mixtures?

Back

Something composed of two or more pure substances.

Front

What are the two types of mixtures?

Back

Homogenous, Heterogenous

Front

How can the two types of mixtures be distinguished between one another?

Back

Homogenous look the same throughout – heterogeneous you can see the different materials. Homogenous mixtures are easily mistaken for pure substances of the uniform composition.

Front

Why can mixtures be separated?

Back

Because the different pure substances that make up the mixture have different properties. Example: Two materials with different densities, will behave differently in a container.

Front

What is a property when describing matter?

Back

A property is a characteristic or quality of a substance.