Matter Flashcard

Front

What is an Element?

Back

An element is a pure substance that cannot be separated into simpler substances by chemical means. Examples include hydrogen (H), oxygen (O), and gold (Au).

Front

What is a Physical Property?

Back

A physical property is a characteristic of a substance that can be observed or measured without changing its chemical composition. Examples include melting point, boiling point, and density.

Tags

NGSS.MS-PS1-4

Front

What is Condensation?

Back

Condensation is the process by which a gas turns into a liquid. This occurs when the gas is cooled to its dew point.

Tags

NGSS.MS-ESS2-4

NGSS.MS-PS1-4

Front

What is a Mixture?

Back

A mixture is a combination of two or more substances that are not chemically combined. Examples include air, salad, and saltwater.

Front

What is a Compound?

Back

A compound is a pure substance made up of two or more elements that are chemically combined in a fixed ratio. Examples include water (H2O) and carbon dioxide (CO2).

Tags

NGSS.MS-PS1-1

Front

What is a Chemical Change?

Back

A chemical change is a process that involves the transformation of one or more substances into different substances. Examples include rusting of iron and burning of wood.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is a Solution?

Back

A solution is a homogeneous mixture where one substance (the solute) is dissolved in another (the solvent). An example is saltwater.

Front

What is Flammability?

Back

Flammability is a chemical property that describes how easily a substance can ignite and burn in the presence of oxygen.

Front

What is Melting Point?

Back

The melting point is the temperature at which a solid becomes a liquid. For example, the melting point of ice is 0°C.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

What is Evaporation?

Back

Evaporation is the process by which a liquid turns into a gas at temperatures below its boiling point.

Tags

NGSS.MS-PS1-4