UNDERSTANDING MATTER

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

• Atoms

• Compounds

• Elements

• Mixtures

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

• atom

• compound

• molecule

• element

A ______________ is made up of different kinds of atoms chemically combined.

• substance

• molecule

• compound

• mixture

True or false: elements and compounds are pure substances.

• True

• False

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

• noble gases

• metallics

• actinoids

• metalloids

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

• composition

• homogeneous

• solution

• heterogeneous

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

• composition

• homogeneous

• solution

• heterogeneous

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

• solution

• suspension

• colloid

• heterogeneous mixture

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

• heterogeneous

• homogeneous

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

• homogeneous

• heterogenous