Pure Substances and Mixtures

___________ are the smallest unit of an element that maintains the properties of that element.

• Atoms

• Elements

• Compounds

• Mixtures

Tags

NGSS.MS-PS1-1

An _______________ is made up of one or more of the same kind of atom chemically combined.

• atom

• element

• molecule

• compound

Tags

NGSS.MS-PS1-1

A ______________ is made up of elements that are combined chemically.

• element

• compound

• mixture

• molecule

Tags

NGSS.MS-PS1-1

A _____________ contains a variety of elements and compounds that are not chemically combined with each other.

• compound

• element

• molecule

• mixture

A __________________ is a substance that has definite physical and chemical properties such as appearance, melting point, and reactivity.

• mixture

• pure substance

• compound

• element

Tags

NGSS.MS-PS1-4

True or False: elements AND compounds are pure substances.

• True

• False

Elements are broadly classified as metals, nonmetals, and _________________.

• compounds

• organic

• metalloids

• Metallica

Each element has a place in an arrangement called the ____________________________________.

• Elements Table

• Elementary Table

• Kitchen Table

• Periodic Table of the Elements

A ______________ mixture is one that does not have a uniform composition.

• heterogeneous

• homogenous

• pure substance

A _________________ mixture is one where the substances are evenly spread throughout.

• heterogeneous

• homogeneous

• pure substance