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 different kinds of atoms chemically combined.

• element

• compound

• mixture

• molecule

Tags

NGSS.MS-PS1-1

True or False: elements AND compounds are pure substances.

• True

• False

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

• compounds

• organic

• metalloids

• Metallica

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

In a ______________, one substance is dissolved in another substance.

• solution

• suspension

• colloid

Tags

NGSS.MS-PS1-2

Fruit Loops, pizza, and Skittles are examples of ____________________ mixtures.

• heterogeneous

• homogeneous

• pure

Coffee, mouthwash, and vinegar are examples of __________________ mixtures.

• heterogeneous

• homogeneous

• pure