Atoms, Compounds, and Molecules Practice

Front

What is an atom?

Back

An atom is the smallest unit of matter that retains the properties of an element.

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-5

Front

What is a molecule?

Back

A molecule is formed when two or more atoms chemically bond together.

Tags

NGSS.MS-PS1-1

Front

What is a compound?

Back

A compound is a substance formed when two or more different types of atoms bond together.

Tags

NGSS.MS-PS1-1

Front

What is the difference between an element and a compound?

Back

An element is a pure substance made of only one type of atom, while a compound is made of two or more different types of atoms.

Front

What is a mixture?

Back

A mixture is a combination of two or more substances that are not chemically bonded.

Front

Give an example of an element.

Back

An example of an element is oxygen (O).

Front

Give an example of a compound.

Back

An example of a compound is water (H2O).

Tags

NGSS.MS-PS1-1

Front

What does it mean when we say 'every compound is a molecule'?

Back

It means that all compounds are made up of molecules, but not all molecules are compounds.

Tags

NGSS.MS-PS1-1

Front

What is the chemical formula for methane?

Back

The chemical formula for methane is CH4.

Tags

NGSS.MS-PS1-1

Front

What is the chemical formula for carbon dioxide?

Back

The chemical formula for carbon dioxide is CO2.

Tags

NGSS.MS-PS1-1