Elements & Compounds vocabulary flashcard

Front

What is the definition of Density?

Back

The amount of mass per unit volume of a substance.

Front

What is the definition of Compound?

Back

A substance formed from two or more elements chemically united in fixed proportions.

Front

What are Salts?

Back

Compounds formed by the reaction of an acid with a base.

Tags

NGSS.MS-PS1-5

Front

What is the definition of the Hydrosphere?

Back

All the water on Earth's surface, including oceans, lakes, rivers, and glaciers.

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

Front

What is the definition of the Biosphere?

Back

The part of Earth where life exists.

Front

What is an Element?

Back

A pure substance that cannot be broken down into simpler substances by chemical means.

Front

What is a Mixture?

Back

A combination of two or more substances that are not chemically combined.

Front

What is a Chemical Reaction?

Back

A process that involves the rearrangement of the molecular or ionic structure of a substance.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What is an Atom?

Back

The smallest unit of a chemical element, consisting of a nucleus surrounded by electrons.

Tags

NGSS.MS-PS1-1

Front

What is a Molecule?

Back

A group of two or more atoms bonded together.

Tags

NGSS.MS-PS1-1